WAY better then the previous method and 0 configuration

more flexible entity iframe usage; can now be a block as well as optionally rendered on entities instead of stuffed at the bottom of the node body

treat entity_iframe paths as admin; useful in checks w/ other modules as to if they should add content to the page

Consumer and provider iframe submodules that allow for secure communication across domain. currently this supports automatic resizing of the height of the iframe for responsive iframes on load

This also works when navigating inside the iframe and support multiple
domains for a many to many, dynamically allocated relationship, setting
it apart from most other library methods that are 1 to 1.

documentation updated to reflect views integration as well as expanded iframe embed production flexibility

clean up variables, also force upgrade to run so that menu cache is cleared since the access arguments have been updated

cleaned up the admin page visually as well as added support for bundle types based the entities types that are enabled

fixes a php warning that would be thrown if entity type didn't set these values for rendering output

added permission for viewing the iframe code so that you can give people the ability to view the embed code independently of the ability to view in the iframe mode

added "iframe mode" sub-module to attempt to keep links displayed inside an iframe inside the iframe theme. documentation updated as well