remove warnings under win32
revert vcxproj files
label:support clip blank of upper and lower margin.
add getter of ClipMarginEnabled.
Update getter of ClipMarginEnabled.
Merge pull request #5931 from Dhilan007/develop_label

label: Support to clip transparent area of Label, content size will be updated with only non-transparent area.
Update CHANGELOG [ci skip]
[ci skip]
[ci] Updates travis scripts. only commit relevant folder.
Merge pull request #5968 from dumganhar/develop

[ci] Updates travis scripts. only commit relevant folder.
[AUTO]: updating luabinding automatically
Merge pull request #5970 from CocosRobot/update_lua_bindings_1395739745

[AUTO]: updating luabinding automatically
Merge pull request #5926 from andyque/fix_tests_warnings

issue #4401, remove warnings under win32
Upgrades to Chipmunk 6.2.1
Merge pull request #5973 from ricardoquesada/chipmunk_6_2_1

Upgrades to Chipmunk 6.2.1
chipmunk fixes for Linux
Merge pull request #5976 from ricardoquesada/chipmunk_fixes

chipmunk fixes for Linux