Error Message was changed
-selected action changes group's icon and toggles
-add reset selected action button
-creation block name presents the group on the palette
add custom diagram example
fix http://youtrack.jetbrains.com/issue/MPS-19316 Default editor doesn't show node attributes
connector creation example
add test attributes and test for adding/removing attributes to the default editor
IdeaPlugin debug port = 5011
Runtime support for reporting conflict warnings in typing rules
Updated generator templates to support reporting warning on the overloaded operation types conflict, MPS-17793
Regenerated required files
MPS-19710 [Mac Os] Exception on start MPS. Can't get shell environment  java.lang.Exception: rv:126 text:0
RM-9820 - updated help ids in settings panels and tool windows
MPS-19586 Use stripImplementation in Build Scripts
Fix MPS-19583 Java importer does not support static import
Static import of classes is supported
RM-9820 - updated help ids in refactoring dialogs
Deleted unused class in IdeaPlugin
Merge branch '3.1/rcp'
make
Copy all files from source_gen
Copy all files from source_gen - rebuild build scripts