Update to bootstrap 3.
Add bootstrap 3 imports to layouts file.

- Changed CSS and JS imports.
- Added HTML5 and responsive fixes for IE8 and below.
- Corrected indentation.
Switch to new navbar, fix bootstrap imports.

- Add bootstrap folder to import paths.
- Won't support IE8 and below after all.
- Indentation fixes (now 2 spaces).
Stick navbar to top.
Revert to default font color in navbar.
Switch to HTML5 doctype.
Use img-responsive class on front page graphic.
Fix indentation (2 spaces).
Preliminary version of footer.

- Use col classes.
Switch to using col classes for layouting.
Fix font family.
Fix alt version links.

- Use new button class.
- Use col class.
Fix X migration notice label.
Restyle front page top, more responsive.

- Use high-res hero image.
- Change cols and rows for better reflow on small screens.
- Drop X migration hint.
- Also fixed up pay page.
Move feature request nav item to right, add external icon.
Fix up help page.

- Use new col classes.
- Add ext page glyphs to ext links.
- Update migration and X sub instructions.
Fix up privacy page.

- Use new col classes.
- Change Home screen to lowercase home screen.
Clean up footer.

- Use simple text links for social media pages.
- Remove ABS and VP logos.
- Remove black backdrops (wells).
- Add ext site glyphs to ext links.
Removed unused images, used higher res app icons.
Add new seasons progess image.

- Higher resolution and of version 8.