Update dependency: angular-ui-router to 0.2.10

ui-router 0.2.7 is outdated and contains basic bugs such as https://github.com/angular-ui/ui-router/issues/692 preventing the use of "ui-sref-active" on distributed version.    UI-view animations fix and much more..

I use ionic and enhance it a lot with ui-router directly (I dislike static href, and love ui-sref...   in addition to using my own ui-views, etc..)

I've tested this on my setup with 0.2.10 and it is flawless.
Anything preventing us from moving forward to 0.2.10 ?