retain the sprite frame

do not removed by SpriteFrameCache::removeUnusedSpriteFrames
Merge branch 'v3' into spriteretainframe
change setColor to setTextColor
modify changelog
add new lua runtime
update lua corelib
add more usable functions
update framework
update corelib
fix typo
update lua-default-template
update lua-template-runtime
1. do not setFrameSize when resetDesignResolution
2. read config.json when ConfigParser init
[AUTO]: updating luabinding automatically
Merge pull request #9672 from CocosRobot/update_lua_bindings_1419817593

[AUTO]: updating luabinding automatically
Merge pull request #9660 from yinjimmy/newLuaRuntime

add new lua runtime
[AUTO]: updating luabinding automatically
Merge pull request #9676 from CocosRobot/update_lua_bindings_1419818723

[AUTO]: updating luabinding automatically
Merge pull request #9663 from dualface/update_lua_corelib

update lua corelib
[AUTO][ci skip]: updating cocos2dx_files.json