Update gitignore and publish CLA

Author: xeroc

.gitignore

@@ -63,3 +63,8 @@ target/
 *.swp
 .ropeproject/
 */.ropeproject/
+grapheneapi
+graphenebase
+graphenecommon
+graphenestorage
+scripts

contrib/CLA-signed.md

@@ -0,0 +1,285 @@
+Fiduciary License Agreement 2.0
+-------------------------------
+
+based on the
+
+Individual Contributor exclusive License Agreement
+--------------------------------------------------
+
+(including the Traditional Patent License OPTION)
+-------------------------------------------------
+
+Thank you for your interest in contributing to ChainSquad GmbH's
+python-bitshares ("We" or "Us").
+
+The purpose of this contributor agreement ("Agreement") is to clarify
+and document the rights granted by contributors to Us. To make this
+document effective, please follow the instructions provided when sending a pull
+request at https://github.com/bitshares/python-bitshares.
+
+### 0. Preamble
+
+Software is deeply embedded in all aspects of our lives and it is
+important that it empower, rather than restrict us. Free Software gives
+everybody the rights to use, understand, adapt and share software. These
+rights help support other fundamental freedoms like freedom of speech,
+press and privacy.
+
+Development of Free Software can follow many patterns. In some cases
+whole development is handled by a sole programmer or a small group of
+people. But usually, the creation and maintenance of software is a
+complex process that requires the contribution of many individuals. This
+also affects who owns the rights to the software. In the latter case,
+rights in software are owned jointly by a great number of individuals.
+
+To tackle this issue some projects require a full copyright assignment
+to be signed by all contributors. The problem with such assignments is
+that they often lack checks and balances that would protect the
+contributors from potential abuse of power from the new copyright
+holder.
+
+FSFE's Fiduciary License Agreement (FLA) was created by the Free
+Software Foundation Europe e.V. with just that in mind -- to concentrate
+all deciding power within one entity and prevent fragmentation of rights
+on one hand, while on the other preventing that single entity from
+abusing its power. The main aim is to ensure that the software covered
+under the FLA will forever remain Free Software.
+
+This process only serves for the transfer of economic rights. So-called
+moral rights (e.g. authors right to be identified as author) remain with
+the original author(s) and are inalienable.
+
+### How to use this FLA
+
+If You are an employee and have created the Contribution as part of your
+employment, You need to have Your employer approve this Agreement or
+sign the Entity version of this document. If You do not own the
+Copyright in the entire work of authorship, any other author of the
+Contribution should also sign this -- in any event, please contact Us at
+info@chainsquad.com.
+
+### 1. Definitions
+
+**"You"** means the individual Copyright owner who Submits a
+Contribution to Us.
+
+**"Legal Entity"** means an entity that is not a natural person.
+
+**"Affiliate"** means any other Legal Entity that controls, is
+controlled by, or under common control with that Legal Entity. For the
+purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such Legal Entity,
+whether by contract or otherwise, (ii) ownership of fifty percent (50%)
+or more of the outstanding shares or securities that vote to elect the
+management or other persons who direct such Legal Entity or (iii)
+beneficial ownership of such entity.
+
+**"Contribution"** means any original work of authorship, including
+any original modifications or additions to an existing work of
+authorship, Submitted by You to Us, in which You own the Copyright.
+
+**"Copyright"** means all rights protecting works of authorship,
+including copyright, moral and neighboring rights, as appropriate, for
+the full term of their existence.
+
+**"Material"** means the software or documentation made available by
+Us to third parties. When this Agreement covers more than one software
+project, the Material means the software or documentation to which the
+Contribution was Submitted. After You Submit the Contribution, it may be
+included in the Material.
+
+**"Submit"** means any act by which a Contribution is transferred to
+Us by You by means of tangible or intangible media, including but not
+limited to electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, Us, but
+excluding any transfer that is conspicuously marked or otherwise
+designated in writing by You as "Not a Contribution."
+
+**"Documentation"** means any non-software portion of a Contribution.
+
+### 2. License grant
+
+#### 2.1 Copyright license to Us
+
+Subject to the terms and conditions of this Agreement, You hereby grant
+to Us a worldwide, royalty-free, exclusive, perpetual and irrevocable
+(except as stated in Section 8.2) license, with the right to transfer an
+unlimited number of non-exclusive licenses or to grant sublicenses to
+third parties, under the Copyright covering the Contribution to use the
+Contribution by all means, including, but not limited to:
+
+-   publish the Contribution,
+-   modify the Contribution,
+-   prepare derivative works based upon or containing the Contribution
+    and/or to combine the Contribution with other Materials,
+-   reproduce the Contribution in original or modified form,
+-   distribute, to make the Contribution available to the public,
+    display and publicly perform the Contribution in original or
+    modified form.
+
+#### 2.2 Moral rights
+
+Moral Rights remain unaffected to the extent they are recognized and not
+waivable by applicable law. Notwithstanding, You may add your name to
+the attribution mechanism customary used in the Materials you Contribute
+to, such as the header of the source code files of Your Contribution,
+and We will respect this attribution when using Your Contribution.
+
+#### 2.3 Copyright license back to You
+
+Upon such grant of rights to Us, We immediately grant to You a
+worldwide, royalty-free, non-exclusive, perpetual and irrevocable
+license, with the right to transfer an unlimited number of non-exclusive
+licenses or to grant sublicenses to third parties, under the Copyright
+covering the Contribution to use the Contribution by all means,
+including, but not limited to:
+
+-   publish the Contribution,
+-   modify the Contribution,
+-   prepare derivative works based upon or containing the Contribution
+    and/or to combine the Contribution with other Materials,
+-   reproduce the Contribution in original or modified form,
+-   distribute, to make the Contribution available to the public,
+    display and publicly perform the Contribution in original or
+    modified form.
+
+This license back is limited to the Contribution and does not provide
+any rights to the Material.
+
+### 3. Patents
+
+#### 3.1 Patent license
+
+Subject to the terms and conditions of this Agreement You hereby grant
+to Us and to recipients of Materials distributed by Us a worldwide,
+royalty-free, non-exclusive, perpetual and irrevocable (except as stated
+in Section 3.2) patent license, with the right to transfer an unlimited
+number of non-exclusive licenses or to grant sublicenses to third
+parties, to make, have made, use, sell, offer for sale, import and
+otherwise transfer the Contribution and the Contribution in combination
+with any Material (and portions of such combination). This license
+applies to all patents owned or controlled by You, whether already
+acquired or hereafter acquired, that would be infringed by making,
+having made, using, selling, offering for sale, importing or otherwise
+transferring of Your Contribution(s) alone or by combination of Your
+Contribution(s) with any Material.
+
+#### 3.2 Revocation of patent license
+
+You reserve the right to revoke the patent license stated in section 3.1
+if We make any infringement claim that is targeted at your Contribution
+and not asserted for a Defensive Purpose. An assertion of claims of the
+Patents shall be considered for a "Defensive Purpose" if the claims
+are asserted against an entity that has filed, maintained, threatened,
+or voluntarily participated in a patent infringement lawsuit against Us
+or any of Our licensees.
+
+### 4. License obligations by Us
+
+We agree to (sub)license the Contribution or any Materials containing,
+based on or derived from your Contribution under the terms of any
+licenses the Free Software Foundation classifies as Free Software
+License and which are approved by the Open Source Initiative as Open
+Source licenses.
+
+We agree to license patents owned or controlled by You only to the
+extent necessary to (sub)license Your Contribution(s) and the
+combination of Your Contribution(s) with the Material under the terms of
+any licenses the Free Software Foundation classifies as Free Software
+licenses and which are approved by the Open Source Initiative as Open
+Source licenses.
+
+### 5. Disclaimer
+
+THE CONTRIBUTION IS PROVIDED "AS IS". MORE PARTICULARLY, ALL EXPRESS
+OR IMPLIED WARRANTIES INCLUDING, WITHOUT LIMITATION, ANY IMPLIED
+WARRANTY OF SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NON-INFRINGEMENT ARE EXPRESSLY DISCLAIMED BY YOU TO US AND BY US TO YOU.
+TO THE EXTENT THAT ANY SUCH WARRANTIES CANNOT BE DISCLAIMED, SUCH
+WARRANTY IS LIMITED IN DURATION AND EXTENT TO THE MINIMUM PERIOD AND
+EXTENT PERMITTED BY LAW.
+
+### 6. Consequential damage waiver
+
+TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL YOU
+OR WE BE LIABLE FOR ANY LOSS OF PROFITS, LOSS OF ANTICIPATED SAVINGS,
+LOSS OF DATA, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL AND EXEMPLARY
+DAMAGES ARISING OUT OF THIS AGREEMENT REGARDLESS OF THE LEGAL OR
+EQUITABLE THEORY (CONTRACT, TORT OR OTHERWISE) UPON WHICH THE CLAIM IS
+BASED.
+
+### 7. Approximation of disclaimer and damage waiver
+
+IF THE DISCLAIMER AND DAMAGE WAIVER MENTIONED IN SECTION 5. AND SECTION 6.
+CANNOT BE GIVEN LEGAL EFFECT UNDER APPLICABLE LOCAL LAW, REVIEWING
+COURTS SHALL APPLY LOCAL LAW THAT MOST CLOSELY APPROXIMATES AN ABSOLUTE
+WAIVER OF ALL CIVIL OR CONTRACTUAL LIABILITY IN CONNECTION WITH THE
+CONTRIBUTION.
+
+### 8. Term
+
+8.1 This Agreement shall come into effect upon Your
+acceptance of the terms and conditions.
+
+8.2 This Agreement shall apply for the term of the
+copyright and patents licensed here. However, You shall have the right
+to terminate the Agreement if We do not fulfill the obligations as set
+forth in Section 4. Such termination must be made in writing.
+
+8.3 In the event of a termination of this Agreement
+Sections 5., 6., 7., 8., and 9. shall survive
+such termination and shall remain in full force thereafter. For the
+avoidance of doubt, Free and Open Source Software (sub)licenses that
+have already been granted for Contributions at the date of the
+termination shall remain in full force after the termination of this
+Agreement.
+
+### 9. Miscellaneous
+
+9.1 This Agreement and all disputes, claims,
+actions, suits or other proceedings arising out of this agreement or
+relating in any way to it shall be governed by the laws of
+Germany excluding its private international
+law provisions.
+
+9.2 This Agreement sets out the entire agreement
+between You and Us for Your Contributions to Us and overrides all other
+agreements or understandings.
+
+9.3 In case of Your death, this agreement shall
+continue with Your heirs. In case of more than one heir, all heirs must
+exercise their rights through a commonly authorized person.
+
+9.4 If any provision of this Agreement is found
+void and unenforceable, such provision will be replaced to the extent
+possible with a provision that comes closest to the meaning of the
+original provision and that is enforceable. The terms and conditions set
+forth in this Agreement shall apply notwithstanding any failure of
+essential purpose of this Agreement or any limited remedy to the maximum
+extent possible under law.
+
+9.5 You agree to notify Us of any facts or
+circumstances of which you become aware that would make this Agreement
+inaccurate in any respect.
+
+### You
+
+    ---------- --
+    Date:
+    Name:
+    Title:
+    Address:
+    ---------- --
+
+### Us
+
+    ---------- --
+    Date:      Mi 27. Jun 09:32:47 CEST 2018
+    Name:      Fabian Schuh
+    Title:     CEO / ChainSquad GmbH
+    Address:   Am Weichselgarten 7, 91054 Erlangen, Germany
+    ---------- --
+
+#### Recreate this Contributor License Agreement
+
+[contributoragreements.org](http://contributoragreements.org/u2s/wx8wraqtr)