make transient model enable/disable icons less similar
highlighting unused, out of scope and unreachable models/modules in model properties
find usages of models/modules from models properties (model scope) and module properties (global scope)
confirm dialog before delete (unfinished)
quiet log for ivy
resolve circular dependency mps-ui on mps-workbench
fix tests
temporary exclude find from plugin
good look confirm dialog
add IDEA 'Editor Tabs' settings
add image file type as known types (without editing possibility)
Merge branch 'master' into victor/ui_improvements

Conflicts:
	workbench/mps-workbench/source/jetbrains/mps/ide/findusages/view/treeholder/treeview/UsagesTreeComponent.java
	workbench/mps-workbench/source/jetbrains/mps/workbench/actions/model/DeleteModelHelper.java
fix tests after merge
Merge branch 'master' into victor/ui_improvements

Conflicts:
	workbench/mps-workbench/source/jetbrains/mps/ide/findusages/view/treeholder/treeview/UsagesTreeComponent.java
	workbench/mps-workbench/source/jetbrains/mps/workbench/actions/model/DeleteModelHelper.java
fix tests after merge
migrate some models to open api
Merge branch 'victor/ui_improvements'