Added ResUtils.getIdentifier()
Added ResUtils.getIdentifier()

So that we can convert the String-based references to raw resources
quickly and easily.

andyao/joda-time-android,rjhonsl/joda-time-android,netfirms/joda-time-android,ptornhult/joda-time-android,xfumihiro/joda-time-android,andyao/joda-time-android,dlew/joda-time-android,rjhonsl/joda-time-android,ptornhult/joda-time-android,lucasxas/joda-time-android,xfumihiro/joda-time-android,netfirms/joda-time-android,dlew/joda-time-android,lucasxas/joda-time-android