Put gh-pages branch in site/

    git read-tree -u --prefix=site/ gh-pages

This is so we can work on code and docs at the same time.
Script to merge master/site into gh-pages
Lowercase weave for consistency
Script to publish gh-pages to site

Ideally to be used after merging changes from master with
`./bin/merge-into-gh-pages`
Merge pull request #180 from squaremo/issue176_move_ghpages_to_master

Move gh-pages to master