XMLUI: Add initial theme for HUMIDTROPICS

From Sisay Webshet
Move HUMIDTROPICS -> Humidtropics

It's not an acronym and it just looks loud
XMLUI: More cleanup for Humidtropics rename
XMLUI: Remove unused file in Humidtropics theme
XMLUI: Remove a few more unused images in Humidtropics theme
XMLUI: Fixes for Humidtropics banner
XMLUI: Fix margins on Humidtropics file listings
XMLUI: Add Atmire stats to Humidtropic theme
XMLUI: CSS fixes for thumbnail size in Humidtropics theme
XMLUI: CSS fixes for item list styles

The fonts should be the same size as the rest of the page.
XMLUI: Clean up some cruft in Humidtropics theme
XMLUI: Country should be Country Focus in the item list
xmlui.xconf: Update community handle for Humidtropics

Now that it's imported into CGSpace, we have the correct handle id
xmlui: Add initial Bioversity theme
xmlui: Fix banner image for Bioversity

Rename to "banner.jpg" to be more generic (we obviously know it's
for Bioversity), and fix the header CSS to match the actual size
of the image.
xmlui: Quick fixes to Bioversity XSL
xmlui: Quick fixes to Bioversity theme based on latest Mirage

This is just a re-sync with DSpace 3.1's Mirage, as we were missing
lots of little things (minor syntax fixes, new features, assets like
PNGs for features, etc).
xmlui: Remove unneeded image from Bioversity theme
xmlui: Tweak some colors in Bioversity theme

Borrowed from CSS on http://www.bioversityinternational.org/
Remaining changes for Bioversity XMLUI theme

Input forms and strings