Warn user if we try to use DNS with a SOCKS5 proxy

Ask if we really want to do a DNS request, without the proxy

Fixes #627
threadify file logger
Make emoticons more compatible with other clients
Italian translation: update
remove *.qm files
struct Friend refactoring
only public key is necessary
possiblity to setup alias
load/save aliases from the settings file
Alias: remove unnecessary symbols + size limit
main window title proper updating
default friend name
Merge branch 'pr654'
Merge branch 'pr655'
Merge branch 'pr657'
Merge branch 'pr662'
handle tox save files, also fix IdentForm bug
Windows installer: System-wide Tox URI protocol support

Will enable support for the tox: (Tox URI) protocol in the registry, notably in major web browsers
Same mistake every time...
remove incorrect line