Update repo to work as a standalone component

Author: cboden

.gitignore

@@ -0,0 +1,2 @@
+composer.lock
+vendor

.travis.yml

@@ -0,0 +1,14 @@
+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - hhvm
+
+matrix:
+  allow_failures:
+    - php: hhvm
+
+before_script:
+  - composer install --dev --prefer-source

README.md

@@ -56,7 +56,7 @@ This component depends on `événement`, which is an implementation of the
   the buffer, then close it.
 
 ## Usage
-
+```php
     $loop = React\EventLoop\Factory::create();
 
     $source = new React\Stream\Stream(fopen('omg.txt', 'r'), $loop);
@@ -65,3 +65,4 @@ This component depends on `événement`, which is an implementation of the
     $source->pipe($dest);
 
     $loop->run();
+```

composer.json

@@ -7,16 +7,22 @@
         "php": ">=5.4.0",
         "evenement/evenement": "~2.0"
     },
+    "require-dev": {
+        "react/event-loop": "0.4.*",
+        "react/promise": "~2.0"
+    },
     "suggest": {
         "react/event-loop": "0.4.*",
         "react/promise": "~2.0"
     },
     "autoload": {
-        "psr-4": { "React\\Stream\\": "" }
+        "psr-4": {
+            "React\\Stream\\": "src"
+        }
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "0.4-dev"
+            "dev-master": "0.5-dev"
         }
     }
 }