Make yum quit when an invalid option is provided with --setopt.
 Add all the weak deps. tags via. prco.

 Edit's by James Antill, note that we aren't supplying an API above
returnPrco() atm.
Fix traceback when history files don't exist and user is not root.
Make utils.get_process_info() respect executable names with spaces.
Refactored utils.get_process_info() to make parts of it reusable.
Change man page text for RHEL-7 group_command=object feedback.
Allow objects as well as pure strings, for var replacements.
Add get_uuid_obj() for dynamic uuid creation on use.
Use get_uuid_obj() instead of get_uuid(), to help out ostree.
No error for refilter cleanup, rm dirs. and eat all errors. BZ 1062959.
Documentation tweak for group info and blacklisted packages.
Make sure we've converted yumdb objects to strings.
Skip uuid now, for ostree/etc.
Check for the new weak deps. tables. BZ 1080569.