Bump version to 1.1.8

Change-Id: Ifabebd10e54795286ff873d165666cd8c25ca9c1
Signed-off-by: Adrian Vladu <avladu@cloudbasesolutions.com>

Author: ader1990

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = cloudbase-init
-version = 1.1.7
+version = 1.1.8
 summary = Portable cloud initialization service
 description-file =
   README.rst