v1.6.3
chore(*): switch from JSHint/JSCS to ESLint
chore(eslint): enable `quotes: ["error", "single"]`
chore(ngAnimate): cleanup vendor prefixes handling in tests
fix($animate): reset `classNameFilter` to `null` when a disallowed RegExp is used
refactor($q): replace occurrences of `.when()` with `.resolve()`