Feature ng grid

[lucassus]

• [x] basic experiment with server-side ngGrid
• [x] "clear selection" should unselect row in the grid
• [x] figure out why ngGrid is slow https://github.com/angular-ui/ng-grid/issues/727
• [x] combine grid pager and sorter with ui-router
• [ ] grid with search filter (quick search)
• [ ] fix pager and scrollbars
• [ ] think about directive/service for building ngGrid for CRUD applications
• [ ] one of these days try 3.0 release