Bugfix #646
added faction table
adjusted faction record to increase consistency with other records
added skill columns to faction table
Minor bugfix #646 change
dealing with unset attribute fields
added hidden flag column to faction table
Merge branch 'faction'
Merge remote-tracking branch 'glorf/bugfix'
simplified code for sub view factory creation
moved Verify function from World menu to File menu
Workaround for launcher compilation problems due to bug in Qt MOC compiler.

For details please see:

https://forum.openmw.org/viewtopic.php?f=7&t=1451
https://bugreports.qt-project.org/browse/QTBUG-22829

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Merge remote-tracking branch 'lgro/qt_and_boost_join_workaround'
Better handle material texture layers