Add advanced parameters to module chromes

### Issue
Each module has some general parameters in the "Advanced" tab:

* Module Tag
* Bootstrap Size
* Header Tag
* Header Class

This parameters are meant to be supported by the templates module chromes. However most chromes don't support this parameters. The only one which currently supports it is the `html5` chrome. You can test this by setting the "Module Style" to `html5`.

### Proposal
This PR adds this parameters to some more chromes where it makes sense.
For Isis and Protostar this is the `well` chrome and for the system chromes it's the `xhtml` chrome.
With this new parameters, the `xhtml` chrome actually does the exact same thing as the `html5` one.

### Testing
After applying the patch, play around with the advanced settings and see if it works.
Also make sure nothing changes in appearance as long as you don't change the module settings.

#### Tracker
This is an alternative solution for the issue raised with http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_id=8103&tracker_item_id=32055