Merge pull request #9 from Wohlstand/master

Merge to Update 9
Merge pull request #10 from Wohlstand/master

Merge to Update 10
Merge pull request #11 from Wohlstand/master

Merge to Update 11
New icon for section button
New icons for Doors editor and Layers list
Added Layers list view
Deleted trash
Small changes
deleted trash
Fixed hidding and added experimental BGOs list
Changed version number
Changed version number
Optimized dockWidgets positions
Optimized dockWidgets positions, blocks box test
Group work with selected blocks
Merge pull request #12 from Wohlstand/master

Merge to Update 12
Fixed Graphics not showing up in leveltoolbox.
Merge pull request #10 from KevinW1998/master

Fixed Graphics not showing up in level-toolbox.
Merge pull request #10 from Wohlstand/master

Merge 10