Fixes for rare parsing problems
Merge branch 'bugzilla_online_plugin_feature' into itc_common
Changes for ITS common and jira
Removed workflow variables tab from ITS node dialogs
First steps into introducing dynamic filters tab
Further changes for filters
Filter cleanup, settings persistance, return values
introduction to jira custom fields mapper

added new models and parser method,
changed uribuilder,
added abstract mapper with not yet finished implementation
persisting selected filters
merged with @mrcysio changes
downloading custom fields to mapper is working

todo: rest of mapper implementation
discuss: how to nicely hook to issues parser implementation
major problems with persisting in components that are not shown
merge

merge
merge
merge clean
mapper further work

abstract finished, status implemented, however thread race errors.
todo: not using itsfilter
mapper refactor

and another piece of work added
mapper shows on separate tab

i cant make it load settings, though
Huge changes in ITSNodeDialog and filters
merged with @mrcysio, small changes