added some validation error messages to app settings. #19
handle error when saving settings to couchdb.
handle errors better saving settings.
Merge branch 'master' of github.com:mandric/dashboard
added css for checkboxes to display inline on settings editor.
prevent form submission on button clicks.

fixed minor potential bug with applying control-group class to all
.je-field elements.

gave form submit handler a name, onFormSubmit, because it was getting
deeply nested.
minor css tweak to restrict validation to #app_settings_schema container.
Merge pull request #20 from mandric/master

better error handling