Add tooltip on sponsors head. in bills page
youtube option tweaks
calendar: remove duplicate entry

some sittings has the same sitting_id and different id, and it means
there is revisied document for a sitting.

Just display the revisied one (greater id count).

Moreover, a sitting might has two entries since it was split into several
time segment.
calendr: sort entries

since we embeded Date and Time into entries' key,
we could just sort entries by key that implies sorting by time.
Add mixin for transition.
... fix mixins lines
calendar: comment our more stuffs and refactoring
remove unecessery mixins, add compass mixins for transition, transform
and box-shadow.
ah.. should use single-transition in compass
Merge pull request #65 from jimyhuang/master

Add tooltip on sponsors head. in bills page
regen for 82df8ec