Merge branch 'hotfix/issue/3140'
add .gitignore and configure it to ignore .reviewboardrc

Change-Id: Id5e587f47a27c9d714d0d0b352b87e9e8f55d4a8
Merge branch 'develop' (0.5.0)

Conflicts:
	.gitignore

Change-Id: I778f3e1f1f4832f5894bc149ead67e9a4becf304
Merge branch 'develop' (0.5.1)

Change-Id: I4e9d845f9758232f4da0d4bfbf785e52982b825b
Merge tag '0.5.2'

tagging 0.5.2 release
update known issues to remove service separation issue that was solved,
and bump the version number to 0.5.2.

Change-Id: Ie75018bf11583d14dab148732d58d6d50f88dd42
Note: this didn't make it into the tag