changed updateModule to use channels to listen for actions, changed updateModule_test to reflect this change
deleted Gemfile.lock because it shouldn't be under version control
changed all dispCtx references to this.context
typo that caused canvasID to not be set
Refactor Action and Bitmap Models to isolate database accesses and keep logic in SocketController
Complete channel broadcast functionality on the back end
Remove unnecessary migration to restore original Bitmap Model schema
commit for changes required for a welcome page
resolve conflict from rewriting getBitmap