Cleanup/Fix compiler flag handling
Review Request #111677 - Created July 25, 2013 and submitted
Fix full rebuilds triggered by forcing increasing CMAKE_CXX_FLAGS variables into the cache, and misc cleanups in this area while being at it. Git Log: Remove -ansi and -Wno-long-long, conflicting/obsolete with C++11. Don't force CMAKE_C[XX]_FLAGS into the cache. This causes the flags in the cache to grow with every cmake re-run, and forcing a complete rebuild since the compiler flags changed. xsltproc is required, so this condition is pointless. Merge compiler flag sections. Remove non-functional CPack section
Doesn't rebuild completely anymore when touching a CMakeLists.txt.