add animate plugin

- update angular to v1.2.21
- add angular-animate
whitespace

reduce indenting
Revert "whitespace"

This reverts commit b48076635f44521d0796662eb06bf00e5925d10c.
wip: dissolve animation

- fade out old view
- then fade in new view
add rotation transition (closes #9)

- add rotation to view change animation
- leave animation staggered slightly ahead of enter
Merge pull request #10 from bboyle/animate-route-changes

Animate route changes