Pass decided upon C99 default to backend to force specification of -std=c99 option.
FIX: made ROSE compile (again) with Boost 1.47 (needs further investigation to move to boost file system 3).
Fixed boost handling, added support for type trait builtin function call expressions, revised use of EDG internally.
Resolved minor conflict.
Added EDG_4.7/src/defines.h.rose file with better macro settings for EDG.
Added CFG support for new IR (SgTypeTraitBuiltinFunctionCallExp).
Changed name of SgTypeTraitBuiltinFunctionCallExp to SgTypeTraitBuiltinOperator, fixed macros in defines.h.rose and removed use of rose_host_envir.h, rose_lang_feat.h, and rose_targ_def.h (note CUDA support still turned off, fails in test2001_01.C if turned on).
[EDG] Re-enable CUDA in EDG