GLM 0.9.6.1

Features:

• Added GLM_LANG_CXX14_FLAG and GLM_LANG_CXX1Z_FLAG language feature flags
• Added C++14 detection

Improvements:

• Clean up GLM_MESSAGES compilation log to report only detected capabilities

Fixes:

• Fixed scalar uaddCarry build error with Cuda #276
• Fixed C++11 explicit conversion operators detection #282
• Fixed missing explicit convertion when using integer log2 with *vec1 types
• Fixed 64 bits integer GTX_string_cast to_string on VC 32 bit compiler
• Fixed Android build issue, STL C++11 is not supported by the NDK #284
• Fixed unsupported _BitScanForward64 and _BitScanReverse64 in VC10
• Fixed Visual C++ 32 bit build #283
• Fixed GLM_FORCE_SIZE_FUNC pragma message
• Fixed C++98 only build
• Fixed conflict between GTX_compatibility and GTC_quaternion #286
• Fixed C++ language restriction using GLM_FORCE_CXX**