Remembering which tabs were loaded for selected revision(s)
FileStatusList support display several parents

FileStatusList rewrited to use ListView
Support collapsible groups in FileStatusList
OwnerDraw and ToolTip for FileStatusListView implemented
Merge pull request #1621 from mdonatas/FormBrowse-perf

Remembering which tabs were loaded for selected revision(s) to prevent reloads
Make ViewPullRequestForm modeless
Merge remote-tracking branch 'gitextensions/master' into BuildServerIntegration-plugin