Fixed Next/PreviousTableCellHandler

The handlers selected the complete content of the next table cell. The
new behavior is to place the caret to the start of the cell's content,
which is how most texteditors work.
The previous cell handler most probably never worked, as it selected the
current cell.

Change-Id: I1c8449ba96b176bd12930c0947a5d28d5b7a124c
Signed-off-by: Carsten Hiesserich <carsten.hie@gmail.com>
2 files changed