Update SO version to account for new changes to osg::StateSet and osgUI

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14393 16af8721-9629-0410-8352-f15c8da7e697

CMakeLists.txt

@@ -49,7 +49,7 @@ PROJECT(OpenSceneGraph)
 SET(OPENSCENEGRAPH_MAJOR_VERSION 3)
 SET(OPENSCENEGRAPH_MINOR_VERSION 3)
 SET(OPENSCENEGRAPH_PATCH_VERSION 3)
-SET(OPENSCENEGRAPH_SOVERSION 114)
+SET(OPENSCENEGRAPH_SOVERSION 115)
 
 # set to 0 when not a release candidate, non zero means that any generated
 # svn tags will be treated as release candidates of given number