add default to scss variables

Doing so allows one to override default variables when writing custom SASS that imports Ratchet's SASS.
Remove `zoom` from `.table-view`.
Fix mobile navbar toggle on desktop.
removing unneeded code
Merge pull request #501 from twbs/remove-zoom

Remove `zoom` from `.table-view`.
removing unneeded code
Update normalize.css to v3.0.1.
Enable `disallowQuotedKeysInObjects` JSCS check and fix the remaining issues.
Gruntfile.js: remove default `report` option.
Merge pull request #519 from twbs/normalize.css

Update normalize.css to v3.0.1.
conflicts
merge
Merge pull request #517 from twbs/input-borders

No need to remove border-bottom from inputs
Merge pull request #498 from twbs/navbar-toggle

Fix mobile navbar toggle on desktop.
Merge pull request #474 from twbs/rename-var

Rename variable object keys & enable `disallowQuotedKeysInObjects` check.
Use `textContent` when `innerText` is not available.

Firefox does not implement `innerText` so this led to another `TypeError`.
Gruntfile.js: remove unneeded target.
Merge pull request #523 from twbs/grunt-remove-unused-target

Gruntfile.js: remove unneeded target.
updating the header on all the js lib files
Merge pull request #526 from twbs/mit

Consistent MIT license header