meetme_control: changed the "End Now" and "Invite" from an input type
to button type and moved out the form, calling the conf_action()
funcion within a form causes this function not to work in certain
browsers like firefox and chrome.

After this change, the "End now" worked when tested in following
browsers: IE6, IE8, Firefox 21.0 and chrome 25

Signed-off-by: Angel Bermudez <angbermu@gmail.com>