adds message param to ban, deban, and deflag worker methods to make them work properly
removes message param from deban method
changes message to reason on ban and deflag methods
adds persist to flag method
reverts ban method back; to be removed on separate branch
flag method update per feedback
Merge pull request #12 from dolores/bug/fix_worker_methods

adds message param to ban, deban, and deflag worker methods to make them work properly