* Make sure that the roster container has a fixed height, so that we can better
check whether the roster is overflowing.
* Call update after inserting the roster into the DOM

only shows when the roster is overflowing. updates #212

Update Chinese translation PO file

This reverts commit a7247a7c.

updates #83

Conflicts:
	index.html

See: https://github.com/jcbrand/converse.js/issues/196
and: https://github.com/jrburke/requirejs/issues/392

updates #196

updates #83