fixed bug when receiving uncategorized remote picture
getRealPeerName returns string instead of None if dict missing

* this should not happen at all, so this does not change anything
* if it is happening, at least the type is right
* do not return IP to see, that something is wrong!
unicode for the last commit (both belong to Issue #167)
replacing type info "dict" in pyqt signals with "object" Issue #167 

*prevents older pyqt versions from converting the dictionaries
automatically
Sorting plugins in settings dialog by displayed name (issue #168)
*Webrelay: first draft completed
more dict->object replacements for Issue #167
more dict->objects replacements (Issue #167)