Putting back the compiler source and target versions to 1.5 for right now.  This still works with Java 5 or 6 compilers.
Putting back the compiler source and target versions to 1.5 for right now.  This still works with Java 5 or 6 compilers.

git-svn-id: 811cd8a17a8c3c0c263af499002feedd54a892d0@666 1c488680-804c-0410-94cd-c6b725194a0e

antoinesd/weld-core,manovotn/core,manovotn/core,antoinesd/weld-core,weld/core,manovotn/core,antoinesd/weld-core,weld/core