Fixed retina/contentScale position errors for iPhone 6+ devices in EditBox.

Problem is that factor was 1.0 or 2.0 until iOS 8 introduced 3.0.
Merge pull request #1 from cocos2d/v3

Update from cocos2d-x
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3
ListViewReader completed and listview callback feature.
Merge branch 'v3' into fixEditBox_v3
fix EditBox move animation position is wrong on iPhone6 Plus
1. ListView demo compeleted.
2. Optimized ListViewReader format.
[AUTO]: updating luabinding automatically
listview resources added
Merge pull request #9402 from doomsdayer/v3_listview

V3 listview
Merge pull request #9434 from CocosRobot/update_lua_bindings_1418121129

[AUTO]: updating luabinding automatically
Merge pull request #9410 from andyque/fixEditBox_v3

Fix edit box v3
[ci skip] Update CHANGELOG
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_cocostudio