Use font-awesome for:

- top of page icons: Print, RSS, SignIn/SignOut, Language, Help
- metadata links in metadata results page ie. download, add to map viewer, bookmark etc
- metadata view icons: print, comment, tooltip, share, permalink

Mapping from protocol/mime-type to CSS classes (for metadata links) and
metadata view icons to CSS classes (in metadata viewer) is now possible
from html5ui/js/Settings.js
Anchor layout meant list of records to link to was not showing
in related resources for parent, dataset etc
Fix spelling mistake in related resource table
Remove sprites and icons that have been replaced with fa stuff
Copy harvesting icons to the (default) place that GeoNetwork expects to find
them(!)
Move text 20px to write to allow for background image
Re-organise icons to remove smart image directory
Bring schemaPlugins up to date
Fix grid view - rows weren't displaying
Merge remote-tracking branch 'upstream/2.10.x' into 2.10.x