Adds Math Performance test.
The fix for recognizing android arm64 device and using NEON64 for  android arm64 device.
Workaround for missing __ctype_get_mb_cur_max function in ndk-r10c
Updates loop count and step count for Math performance test.
Adds UnitTest for MathUtil
Updates Xcode project for Math perf test
Update MathUtilNeon64.inl

Rewrite  CrossVec3 function code
Adds PerformanceMathTest.cpp
Reverts GCC_TREAT_WARNINGS_AS_ERRORS=YES for Xcode project of cpp-tests.
Typo fix for the name of MultiTouchTest
Adds PerformanceMathTest for win32.
Adds PerformanceMathTest for wp8 and winRT
Merge pull request #61 from huangshiwu/wp8-arm64-juno

Adds PerformanceMathTest for wp8 and winRT
MathUtilTest is only available for optimized instructions.
Merge branch 'arm64-juno' of https://github.com/dumganhar/cocos2d-x into arm64-juno
Merge pull request #9203 from dumganhar/arm64-juno

Some updates for neon64 instruction