Integrate ESLint.
Fix ESLint issues.
Merge pull request #88 from twbs/eslint

Integrate ESLint
add grunt-bootlint to Getting Started section of README
rm versions from assets files in test fixtures introduced by #79
Follow-up to #79: Fix ESLint complaints
Merge pull request #94 from twbs/eslint-constant-condition

Disable no-constant-condition ESLint check
Complain about `.row` and `.container` or `.container-fluid` on the same element

Fixes #61.
Fixes #95: Add `lint` to `test` task
Merge pull request #93 from twbs/row-container-same-elem

Complain about `.row` and `.container` or `.container-fluid` on the same...
Merge pull request #96 from twbs/lint-while-test

Fixes #95: Add `lint` to `test` task
increase QUnit/PhantomJS timeout