Allow setting metadata size in lvm config
Add short-circuit option
Print python version on startup
Pass enablerepo and disablerepo options to yum/dnf
Don't use traceLog on functions passed to atexit
Don't delete builddir on each action
Enumerate options for short-circuit
Don't complain about no results with short-circuit
Retain carriage returns in do's output
Allow multiple enable/disablerepo options