Fixed og:type for profile and homepage.
Upped og:image dimensions to 200x200.

As per http://stackoverflow.com/a/15560644/504018
Added og:image logo option to profiles and homepage.
Added more metadata for open graph and html validation.

See https://developers.facebook.com/docs/reference/opengraph/object-type/website
See http://stackoverflow.com/a/7623986/504018
Make release.sh smarter, fix #1043.
Added slugignore file.
Merge pull request #2070 from patcon/heroku-slugignore

Add slugignore file
Bump version to 11.2.23
Bump version to 11.2.23-dev
Note Patronism on README
Merge pull request #2069 from gittip/fix-release.sh

Make release.sh smarter, fix #1043.
Merge pull request #2045 from patcon/2045-facebook-share-img

Appropriate images when sharing link to Gittip homepage/profile
Merge branch 'master' into elsewhere

Conflicts:
	www/%username/index.html.spt