Added Exchange 2013 Template
Updated Readme and zip package
Fixed logon issues with the new Exchange 2013 Template. Also now renders correctly in IE8
Exchange 2013 form now submits on Enter key press. Added logout forms for Exchange 2013
Deleted stale zips
Exchange 2013 now submits on enter. Fixed links to images in logout templates
Updated the main zip file containing all templates
Added Thumbs.db to gitignore