Bump /develop version to v2.3

Develop branch will keep odd numbers for the 'minor' version component

Author: Kent Knox

src/CMakeLists.txt

@@ -50,7 +50,7 @@ if( NOT DEFINED clBLAS_VERSION_MAJOR )
 endif( )
 
 if( NOT DEFINED clBLAS_VERSION_MINOR )
-    set( clBLAS_VERSION_MINOR 1 )
+    set( clBLAS_VERSION_MINOR 3 )
 endif( )
 
 if( NOT DEFINED clBLAS_VERSION_PATCH )