Fix for CCScrollView clipping bug

fix : wrong cliping rect when ancestors scale is not 1
CCBMFontConfiguration::parseConfigFile performance improve
Revert "CCBMFontConfiguration::parseConfigFile performance improve"

This reverts commit d3b5e7b4f653d3454d264b98ef78f2153f440659.
Merge branch 'master' of https://github.com/ztoky/cocos2d-x into ztoky-master
fixed #1711: Wrong clipping rectangle of CCScrollView when the scale of its ancestors isn't equal to 1.
Merge pull request #1986 from dumganhar/ztoky-master

fixed #1711: Wrong clipping rectangle of CCScrollView when the scale of its ancestors isn't equal to 1.