Merge pull request #4 from angular-ui/angular1.2

Angular1.2
Prettified to 2 indents to reduce +-'s with PR.
Changed angular version requirements to 1.x from 1.0.x.
Merge pull request #54 from thgreasi/angular1.2

Prettified to 2 indents to reduce diff with PR
Reverted bower to angular 1.0.x so that build passes.
Merge pull request #55 from thgreasi/angular1.2

Reverted bower to angular 1.0.x so that build passes.
Merged PR #56.
Summary of code changes (in code order):
* Removed apply() in favor of inlined anonymous functions
* Removed ngModel.$render
* Added scope.$watch for attrs.ngModel
* Added callbacks.activate to store elements of ngRepeat and positions
* Added callbacks.receive to record a receive
* Minor changes to callbacks.stop that now utilizes values saved earlier
* Major changes to callbacks.update
* Minor changes to scope.$watch(attrs.uiSortable), (can be backported)
Merge pull request #56 from CyborgMaster/angular1.2

Angular1.2
Provide a way to cancel a sorting.