* Add a more functional error view #5516
* Allow filtering of ignores and warnings to see only important bits.
* Navigate from the folder view to the error view by clicking on the
error list with the red background.
* Move the error list into its own ui file to allow easier extension.
* Fix issue around tab id handling in ActivitySettings.
* Rename "Action" column to "Issue".
* Change mouse cursor to hand over button and new error list area
Several OSX fixes provided by guruz.
The height adjustment done to place the button in the middle of the
non-error area was only done for rendering. Make sure that we do the
same adjustment when mapping click events as well.
Also replace some wrong occurences of aliasMargin*2 for margin.
This use the previous code by resetting the progress to hide
the progress back and then return errors in the FolderErrorMsg
data role of the folder model.
This also remove the unused FolderRemotePath role, remove FolderStatus
in favor of invalidating all roles in dataChanged and make sure
that the SyncRunning role is transfered properly from the SyncResult
to show the warning icon during sync.
