Update to support eslint2 #3
Description
In Votes For Schools, were getting:
3:1 error Rule 'no-empty-label' was removed and replaced by: no-labels no-empty-label
3:1 error Rule 'space-before-keywords' was removed and replaced by: keyword-spacing space-before-keywords
3:1 error Rule 'space-after-keywords' was removed and replaced by: keyword-spacing space-after-keywords
3:1 error Rule 'space-return-throw-case' was removed and replaced by: keyword-spacing space-return-throw-case
If we upgrade eslint to 2. Rules defined to not work with this version.