Minor improvements

-Load javascript only when required
-Disable EditText during calculations.
Move gson models to separate package
Add cupboard lib
Add initial DB code
Update build.gradle
Move Cell Lists to different layout

-Also, added empty view for display in tablets(needs testing)
Make Cell Parcelable(For Dialogs)
Simplify some methods in SageSQLiteOpenHelper
Add rest of DB code
Migrate rest of Code over to using DB

-TODO: This breaks saving on orientation change completely.
Remove old code from Cell
Move Cell Deletion into its own Dialog
Misc Cleanup
Fix cell edit and delete

-Also fix refreshing on deletion/edit
Rename and modify XMLParser for new Cells
Remove unnecessary classes
Remove all old CellData refs
Fix another crash on delete
Fix saving data on orientation changes

Finally!
Merge pull request #70 from hav3n/branch-gsoc-2

Merge working branch into beta