Lint on document load
Scopes bugfix
Documented new settings
More docs
Rebased
Merge pull request #50 from jedijester/dartlint-newfeatures

Lint on document load
Added syntax highlighting support for the 'on' keyword
Merge pull request #54 from austincummings/master

Syntax highlighting support for the 'on' keyword
Created a severity filter for when to show a popup.  (default level is WARNING)
Rebased from upstream
Documented new setting in README
Merge pull request #56 from jedijester/140507-SeverityFiltering

140507 severity filtering