Added etherpad iframe into site

After some internal arguments with myself, I believe iframe > object.

Why? Here:
 - Supported tag by Etherpad
 - Allows dynamic interaction
 - More writing to be done in object tag
 - More browser support for iframe
Added barebones web.py handlers

To note:
 - main.py always has to be uppermost script, calling the other scripts
   below
 - the templates folder is already carved in stone at jinja_handler, don't change where the directory