Mouse handling disabled by default.
Removed mouse wheel from navigation help
Merge remote-tracking branch 'upstream/master'
Add -Werror only for development builds
Merge pull request #161 from pasis/autotools

Add -Werror only for development builds
Respond to disco info requests without node attribute
Add newline before disco output
Respond to disco items query
Added disco items to features in disco info responses
Show message in console when receiving chat room invites
Merge remote-tracking branch 'upstream/master'