fix MPS-19529
create layout manager for EditorComponent
make
fix MPS-19529
fix make error in behavior descriptor
Merge remote-tracking branch 'remotes/origin/MPS3.1' into simon
make and run generators runner
fix MPS-19804
fix MPS-19529
fix tests: validate test component before start
Merge remote-tracking branch 'origin/MPS3.1' into simon

Conflicts:
	editor/editor-runtime/source/jetbrains/mps/nodeEditor/EditorComponent.java
make
Merge remote-tracking branch 'remotes/origin/MPS3.1' into simon
Merge remote-tracking branch 'remotes/origin/MPS3.1' into simon
Merge remote-tracking branch 'remotes/origin/MPS3.1' into simon
make
make
rebuild
fix diff between mps and generated code for DiagramPalette
Merge remote-tracking branch 'remotes/origin/MPS3.1' into simon
Merge remote-tracking branch 'remotes/origin/MPS3.1' into master

Conflicts:
	tools/gensources/gensources.iml
make
MPS-19779 checkboxes in darkula