Various Fixes with support for more attributes.

[hasokeric]

Ignore my Readme however :-)

[ratibus]

Hi

Few comments about this PR :

• you changed the licence from MIT to GPL. Blocker to merge this PR.
• you changed the readme file to link to your fork. Blocker too.
• this PR cannot be automatically merged. Blocker too.
• you broke indentation.
• you fix multiple unrelated issues within the same PR. I would prefer one PR by issue (or at least related issues). For example, for the moment, we do not want to provide a minified version of this plugin but we are interested in some other changes.

Please update this PR.

Regards.