Added VarTable service
Added ExpressionEvaluator service
Updated UI to show 'move' cursor when dragging stmt-block
Revamped Compiler service so to support statement branching
Updated CommandFactory service
Bulk commits
Merge remote-tracking branch 'origin/master'
Merge branch 'master' of https://github.com/ryanoolala/Project-Re-Bro
Updated bower.json
Merge branch 'master' of https://github.com/ryanoolala/Project-Re-Bro