gui scrollbars
scrollable block
UI to display log messages in the editor
tab block
Merge branch 'master' of https://github.com/nem0/LuxEngine into gui
made compilable after master had been merged
docking
Merge branch 'master' of https://github.com/nem0/LuxEngine into gui
docked blocks can be resized
Merge pull request #56 from nem0/multithread_refactor

Multithread refactor
Placeholder struct S in PropertyDescriptor removed - closes #43; gizmo does not cast shadows
Engine and plugins are destructed when the editor is closed - closes #22
scrollbars in a scrollable are properly shown / hidden
dockable decorator - shows where dockable can be docked
Merge branch 'master' of https://github.com/nem0/LuxEngine into gui

Conflicts:
	src/gui/gui.cpp
Merge pull request #53 from nem0/gui

scrollbars, tab block, log ui, docking
native editor notifications and a script compiler
renderer can handle loading more than one resource at once - closes #20
show script compilation errors in the log
fixed vector - call destructors when necessary