Added missing language scripts related to openlayers
Fix for ticket #996 - Cleaned up some included js scripts as they were being called twice.
Added missing es.js - mostly taken from web-client\src\main\resources\apps\js\GeoNetwork\lib\GeoNetwork\lang\es.js
Merge branch '2.8.x' of https://github.com/ianwallen/core-geonetwork into 2.8.x
Fix for Ticket #871
Most of the code for this fix was taken from the main-page.xsl