added the getter methods and docblocks

Signed-off-by: Bruno Gaspar <brunofgaspar1@gmail.com>
Merge branch 'feature/v2' of github.com:cartalyst/demo-data-grid into feature/v2

# By drsii
# Via drsii
* 'feature/v2' of github.com:cartalyst/demo-data-grid:
  small tweaks.