Bug (edit on focus + scroll): starting edit of focused cell after scroll

Steps to reproduce: 
1. Open http://ui-grid.info/docs/#/tutorial/301_editableOnFocus
2. Click on editable cell, f.e., address (starts edit mode).
3. Press ESC, edit mode ends, cell is focused.
4. Scroll grid the way focused cell is still visible.

Result: starting edit on focused cell.
Expected behavior: cell focused, but in regular mode, not edit. 
