Outings: remove uneeded css and style

There is no longer maps on the index
Add version to js/css filenames

This will allows to improve caching for server and client.
Leaflet Geosearch was also updated.
Update bootstrap-datetimepicker to v2.2.0
Translate into Spanish

Signed-off-by: Rémi Duraffort <ivoire@videolan.org>
Activate Spanish language
Update Spanish translation
Update French translation
Set the right active item in the navigation menu
API: allows to manipulate GPSPoint
Merge remote-tracking branch 'upstream/master'

Conflicts:
	RandoAmisSecours/locale/es/LC_MESSAGES/django.po