[vendor/github.js][s]: roll forward to latest version (with support for creating gists).
[#53,login][xs]: request gist write access when doing login to github.
[#53,model/project][m]: functioning persistence of a Project to a gist.
[bugfix][xs]: micro fix s/this/self/g in application.js.
[#54,project/view][s]: you can now view someone else's project if it has been saved to a gist.
[#54,routing][s]: update a "local" project url to a publicly sharable one if that is possible (i.e. you are logged in, project is persisted etc).
[css][s]: prettify the navbar a bit esp by sorting out font color for navbar links.
[bugfix][xs]: bind this correctly.
[#54,bugfix][xs]: fix to have load still work.
Merge branch 'master' into gh-pages