Added ability to add bars from other modules

I have added the ability to call  breach.module('mod_strip').call('add_bar', {
                        url: 'http://localhost:' + port + '/bar',
                        dimension: 45,
                        id: 'bookmarks'
                    }, cb_);

Which increases the height of the mod_strip strip bar and inserts an iframe with the new module underneath it.  This can be done multiple times to add multiple other bars underneath the strip bar.
oops, forgot to remove this