Adding files with fix for last column padding.

https://www.pivotaltracker.com/story/show/55303760

Horizontal scrolling cannot be handled by CSS alone, so there is java script to position some grid content based on the location of the bottom scrollbar. This does not know whether there is a vertical scrollbar present, so we add a small padding to the right-most cells to deal with the case where there is.

__General Requirements__
- [ ] Pull Request contains full description of changes
- [x] Link to the Pivotal Tracker story
- [x] 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__
- [x] Test coverage has not decreased
- [x] There is no performance degradation
- [ ] All appropriate automated tests are present
- [ ] Appropriate seed data exists


---

__UI/UX__
- [ ] applicable (UI/UX has been changed)
- [ ] reviewed for usability and design
- [ ] functions on 1024*768 browser size
- [ ] works on IE8

---

__Defect__
- [ ] Feature or defect resolution has been manually tested and meets all requirements of the underlying story
- [ ] Seed data sufficient to satisfy testing resolution of defect
- [ ] Root cause analysis provided