* add demonstration views (incomplete).
* improve documentation.

* remove trailing spaces.
* rename style plugin from 'Semantic Views : Unformatted' to 'Semantic Views.'
* force default 'div' elements for fields in the row style.
* add inline comments to style plugin option_definition and option_form methods.

Initial commit of Semantic Views module. This module allows site builders and themers to specify HTML elements and classes for unformatted style and field row style output.