Move docs content under docs/
Fix link
Copy index page to docs in prep for merge of alaveteli.org
Move link to the copy of the index which will stay
Comment out search until the pages get reindexed.
Merge branch 'gh-pages-doc-move' into gh-pages
Merge branch 'gh-pages' of ssh://git.mysociety.org/data/git/public/alaveteli into gh-pages