#1 TextTools - Sum Hours To Add Field also for JIRA tasks

[Petr Bodnár]

The Mylyn tasks from JIRA have a different structure from the Bugzilla ones - a different field in a different section of the task editor must be searched when implementing the "Sum Hours -> ... To the Add Field" actions. The format of the worked time is also specific (e. g. "1d 10h 50m").