Bug 945582 - Don't use jemalloc3 C99 headers with MSVC versions that have (some) C99 support. r=mshal

--HG--
rename : memory/jemalloc/src/include/msvc_compat/inttypes.h => memory/jemalloc/src/include/msvc_compat/C99/inttypes.h
rename : memory/jemalloc/src/include/msvc_compat/stdbool.h => memory/jemalloc/src/include/msvc_compat/C99/stdbool.h
rename : memory/jemalloc/src/include/msvc_compat/stdint.h => memory/jemalloc/src/include/msvc_compat/C99/stdint.h