Fixed some issues with reverse geocoding, and added simple minded
updateByLabel() to JS element model, which is just a wrapper for
update(), except in databasejoin, where for dropdown joins it will
attempt to find the value assocated with a given label and set that as
the update value.  Useful for reverse geocoding.
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3