Add message for blockly groups

Change-Id: Ieafae2c6742ea5ddbad3dcdea36e6c72d3e5f953
Remove some no longer needed description messages

Change-Id: I32b869601073dc4139345fd4afc33484f3d50e37
Merge changes I32b86960,Ieafae2c6

* changes:
  Remove some no longer needed description messages
  Add message for blockly groups