Merge branch 'release/1.3.6-2' into develop
Scarlet plugin via @cGV0ZQ
Attempt to run sync only once per build session.
Avoid clobbering Caboose and/or Scarlet.
Don't fail, grunt seems to handle this fine.
Don't overwrite Scarlet.
Update Scarlet description.
1.3.6-3

Closes PR #19
Merge branch 'release/1.3.6-3'