Fix non-JS event-create form submission.

Resolves ticket #877011 (https://bugzilla.mozilla.org/show_bug.cgi?id=877011).
Restore zoom in/out in google maps.

Resolves ticket #877410 (https://bugzilla.mozilla.org/show_bug.cgi?id=877410).
Added env-var db config option.
Add support for sqlite so local dev can be done easier
Merge pull request #2 from mjschranz/sequelizeSQLITE

This adds some support for sqlite usage with Sequelize. This way for local development we can opt to use sqlite and not be forced to keep a mysql server running.