Merge pull request #99 from fsbatista/angular

Snapshots Directive (Styles to be defined..Nevermind the inline Style tags)
RuleJS formulas mixed in with our cellRenderer
formula renderer refactor
formulas work, but unlike val, formulas dont delet
one step closer with all formulas
nearly there!
formulas are stable, dont handle adding new rows
handson formulas
Merge pull request #102 from NickStefan/master

Formulas work
Update title bar with currently opened file path
Merge pull request #103 from johnheroy/master

Update title bar with currently opened file path
Show commit msgs when loading .grid file
Merge pull request #104 from johnheroy/master

Show commit msgs when loading .grid file
testing tests
Added the Current Hash functionality on the Snapshot Controller