Merge pull request #13 from robertbrockie/misc

Added password encrypting... finally.
Merge pull request #14 from robertbrockie/misc

Moved slug generation to the event model. Fixed url check.
Merge pull request #15 from robertbrockie/misc

A much better regex for checking urls.
Merge pull request #16 from robertbrockie/misc

Added event searching to the admin menu.
Merge pull request #17 from robertbrockie/misc

Refactored how the admin renders views.
Merge pull request #18 from robertbrockie/misc

Added searching for artists, venues, and promoters.
Merge pull request #19 from robertbrockie/misc

Added functionality to the 'cancelled' flag.
Merge pull request #20 from robertbrockie/misc

Added field "postponed" to event table. Added cache busting for admin assets.
Merge branch 'master' into misc
Don't lose artist data when there is a form error.