modify widget default behavior
Merge pull request #9630 from andyque/fixCICompile

fix ci compile error
Merge branch 'v3' into modifyWidgetDefaultBehavior

Conflicts:
	cocos/2d/libcocos2d.vcxproj.filters
	cocos/2d/libcocos2d_8_1/libcocos2d_8_1/libcocos2d_8_1.Shared/libcocos2d_8_1.Shared.vcxitems.filters
	cocos/2d/libcocos2d_wp8.vcxproj.filters
fix conflicts and wp8, wp8.1 linker error
set default resource root path & writable path
Merge pull request #9594 from andyque/modifyWidgetDefaultBehavior

modify widget default behavior
Merge pull request #9638 from yinjimmy/writablepath

set default resource root path & writable path