Sync Development (Update 4) - Final Dev Push

This is the final development push to the webinars plugin. Any bugs that
were spotted in development have been ironed out in this commit.
Controller.js has been updated with the login process and video/account
population methods. webinarinformation.php and login.php have been added
for the ajax processes. Any commit after the final dev push will add
features and alter styling and performance.
Merge branch 'master' of https://github.com/associatedemployers/WebinarsPlugin