Merge pull request #278 from psav/docs

Moved web_ui module docs
Add cloud provider discovery and doc update
Merge pull request #279 from weissjeffm/provider
Additonal file needed for 'cfme.cloud' docs to work

re #279
Changes to web_ui components

Added click_items() method to allow for multiple items to be sent
Fixed Form.fill_fields to respect new changes
Docs docs!
Merge pull request #274 from psav/enhance_web_ui_table

Changes to web_ui components
Merge pull request #280 from seandst/docs-docs

Docs docs! Yummy!
Added more documentation