Added topic keyword to Martigan dialogs.
Added topics to dialogs.
Update dialogs wiht Guill with topics, also fixed the require
status to make the dialog flow nicer in the NPC action menu.
Updated xgettext.py to support the new topic keyword.
Revert "Added topics to dialogs."

This reverts commit 0012a5a5ac4a521abc99e65dfeaafeac0c5d81e2.
Revert "Added topic keyword to Martigan dialogs."

This reverts commit cedd319c3579eadc475e556ed91ffe94dc6c155b.
Fix spelling error.
Updated po template file with the new topics.
Merge pull request #162 from hean01/master

Updated NPC's to use the new topic keyword