Feature/card view for grid

https://www.pivotaltracker.com/s/projects/525557/stories/55375852

- Display list/grid option buttons on top of the grid
- Ensures that selections made in list view or card view are synchronized between the two.
- Move grid maximize button to the top-right of the grid header 
- Styling for list/card view buttons (and the other header buttons) on the grid header
- Add pager widget to provide paging for card view.
- Add vertical scrolling support for card views

__General Requirements__
- [ ] Pull Request contains full description of changes
- [ ] Link to the Pivotal Tracker story
- [ ] Rebased against latest master branch
- [ ] There are no `-1` code reviews (can only be overridden by Kyle)

---

__Coding Standards__
- [ ] Style guidelines are followed, code has been formatted
- [ ] Code follows idiomatic language paradigms

---

__Testing__
- [ ] Test coverage has not decreased
- [ ] There is no performance degradation
- [ ] All appropriate automated tests are present
- [ ] Appropriate seed data exists


---

__Documentation__
- [ ] Major design decisions have been documented on the wiki
- [ ] Deployment impact (changes required for new services, configuration, etc.)
- [ ] documentation links from Pull Request

---

__UI/UX__
- [ ] applicable (UI/UX has been changed)
- [ ] reviewed for usability and design
- [ ] functions on 1024*768 browser size
- [ ] works on IE8


---

__Shared Project / Dependencies__
- [x] Reviewed by Architect
- [ ] API changes to shared components documented on wiki
- [ ] 3rd-party library introduced:
- [ ] explanation for updating a project dependency (e.g. 'latest version fixes a bug')