Don't try to commit unchanged specs on push

Add entry to CHANGELOG for momc fix

Fix for when the copy resources script fails at the rm command.

sometimes for me the rm command in this script fails if the file
doesn't exist. I'm not sure why that would happen, but using the -f
flag on rm will prevent this command from failing and halting a build.

Fixes #1189.

Partially reverts c68a4b2c

Closes #1171

Closes #1170
Closes #1168