cleaned up goals page
added view for goals_summary object
Merge branch 'master' of github.com:jofusa/www.gittip.com
Merge pull request #774 from jofusa/master

Cleanup for #545 moved complex sql into view
Bump version to 7.2.19
Bump version to 7.2.20
Bump version to 7.2.20-dev
Fix up goals.html; #778

We got a nice pull request from @jofusa, which adds our first view to
the schema. It, however, leads to division by zero and had another
niggle or two. This cleans it up.
Bump version to 7.2.21
Bump version to 7.2.21-dev
Fix up account invalidation; #778
Bump version to 7.2.22
Bump version to 7.2.22-dev