renamed all the fco sites to have a fco_ prefix

Primarily to make it easier to count the number of mappings per-dept,
but am sure being able to group the sites will help elsewhere.
renamed businesslink sites to have a businesslink prefix
improves uses businesslink assets
Merge pull request #97 from rjc123/newmappings

Temporary DFID mappings to supercede case studies until publish
Merge pull request #98 from rjc123/newmappings

Fix the build
increased test_mappings timeout to 10 seconds, sadly
pruned communities subset tests