Added sabre.io tracker.
Blog changes.
github looks a bit out of place.
Added links to sources.
Merge remote-tracking branch 'upstream/master'
case
case
Merge remote-tracking branch 'upstream/master'
Twitter.
Merge branch 'master' of github.com:fruux/sabre.io
Merge pull request #8 from DominikTo/master

fixed some typos
Merge remote-tracking branch 'upstream/master'
Small tweak on tags.
Merge branch 'master' of github.com:fruux/sabre.io
Merge remote-tracking branch 'upstream/master'