Don't crash on wrong build versions, just don't update
Change updaters. try: Empty, create, download in sb-update + pep8

Change Windows and Source update to the same flow.
Delete sb-update, create sb-update.
Download, extract in sb-update, delete tar/zip
Update.
Change branch check for source, git. Also set SICKBEARD_VERSION = branch
Change git variables
fix not setting _newest_commit_hash