update external library, add iOS x86_64 and arm64 architectures, support Xcode5.1 iPhone simulator(64 bit)
fix the error that AssetManager test case can’t find correct resource path
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_new_fix
label:fixed incorrect effect of outline.
Merge pull request #5784 from Dhilan007/develop_label

label:fixed incorrect effect of outline.
Merge pull request #5783 from samuele3hu/develop_new_fix

[LuaTest] fix the error that AssetManager test case can’t find correct resource path
make description more readable
update changelog
Merge pull request #5785 from minggo/script-des

[ci skip]some small modification for releasing
Some fixes for android-build.py.
Merge pull request #5787 from dumganhar/develop

Some fixes for android-build.py.
extract arm64 architectures form .a file, add condition link arguments.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into support_for_xcode_iphone_64bit_simulator
fix typo, add release condition link arguments.
add i386 architecture to each mac .a file
make description more readable
update readme
Label:fixed text display incorrect when come to foreground on android.
update readme and releae note
Merge pull request #5789 from minggo/develop

update some docs