tideline compatibility

Would have merged this myself @nicolashery, but maybe you should check that I added the new dependency (for tideline v0.0.8) properly?

Tested locally, and everything seemed to work fine. Tideline v0.0.8 contains fixes for our milestone (and the semi-invisible change of the stats in two-week view being calculated properly), so if you could merge this and rev the tideline version for blip in bower.json to v0.0.8 and one of us can deploy a new blip, that'd be great.