moving core into its own project and including here
rearranged directory and added gruntfile for builds, cleans, tests, docs etc.
removed unused rs variable.
prefixing on dom id attributes
added new Eventable
layout, splittable and split changes
many changes getting initial splitting functionality to work in test/manual/build/index.htm
minor change
late night madness.
added manual test to remove region, and fixed subsequent bug find
Renamed Groupable and Grouped Regions to Pairable and Paired Regions as this better describes the semantics of these controls.
Merge pull request #3 from 0xor1/Dev

merge down Dev to Master