Changed the shouldExpand behavior to set the layout at the time the tab is added rather than in onMeasure to solve some problems observed on Android < 4.3
included gradle-mvn-push helper from chris banes
Merge branch 'jive-pr' of https://github.com/dmapr/PagerSlidingTabStrip into dmapr-jive-pr
use psts prefix for custom attrs
sign sample app via gradle
updated readme
merge