anchordockingdsgn: added comman line parameter --anchordocklayout=<file>

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41823 4005530d-fff6-0310-9dd1-cebe43e6787f
gtk3: implemented TGtk3WidgetSet.DrawFocus()


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41824 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: environment option single taskbar button apply after change, bug 24623

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41825 4005530d-fff6-0310-9dd1-cebe43e6787f