Add contextual markers to BatchAction messages

BatchAction message is used for both present (table action menu)
and past (completion message) and there is no way that translators
use different texts for present and passt messages.
This commit add contextual markers to the message strings and allows
translators to use different texts for message in BatchAction.

Change-Id: Ie6438730386fc2cca18704354d5cf5f5b71cd494
Closes-Bug: #1252082
Merge "Add contextual markers to BatchAction messages"