Redirects from 2013 pages were broken and did not use 301 status
 - Added 301 status to search and exact-match redirects
 - Ensured that the redirects use absolute URLs (they were being
   appended relatively)
 - Updated README.md to note that Flight has been extended
Merge pull request #157 from unikent/bug/2013_redirects

Redirects from 2013 pages were broken and did not use 301 status