IE 10 doesn't appear to properly handle calc(100% - 26px), breaking scrolling
of contacts.

Didn't intend to commit and still need to do properly.

- Last pending contact was being obscured/overflowing
- Select box for filtering was not aligned

Fix #467

by the server. Otherwise we get a spinner that doesn't disappear.

Instead, get the height from how it's rendered in the browser (i.e. from CSS)

Update Hebrew translation

Fix [object Object] being sometimes shown as status

Fix [object Object] being shown as status when other presence stanza with custom 'status' is received from other resource

Fix #461: MUC working with spaces etc. in room names

Fix translation error in en locale

- fix incorrect string mapping in en locale

Fix no messages being shown in chat 

Maybe related to message archive feature or different jQuery version

update italian language