adds removeConstraint(s) and tests
Merge branch 'develop' of github.com:blitzagency/rich into develop

* 'develop' of github.com:blitzagency/rich:
  adding scrollview to karma main
  refactored plugin to driver
  scrollview tests written
  adding unit tests for scrollview
  scrollview sort of fixed
  scrollview partially put back together
  about to refactor scroll
  about to refactor scrollview
  putting scrollview back together
  starting scroll refactor
  added scroll content
  starting scrollview
  starting new scrollview