[README][xs]: change extension to .md.
[#158,doc][s]: document login system with github oauth and gatekeeper - fixes #158.
[vendor][s]: upgrade to latest recline.
[tests][s]: tweak to get load test working again (add css class in Load view).
[worker][xs]: change to csv.js (cf 8f69dd38921e4c9359748cc13690997d44beb483).
[#52][s]: help button by scripting box linking to (start of) a scripting tutorial.
[gh-pages][xs]: add _config.yml with excludes to try and avoid building recline docs.