Check Tox DNS protocol version, reject if not tox1

We only support tox1 for now, and soon we should tox3
Fix compilation warning
global autoaccept files
Swedish translation
Implement tox3 support, keep tox1 as silent fallback
Merge branch 'pr632'
cleaning in settings.cpp filetransferinstance.cpp and friendwidget.cpp, global autoaccept, per friend and qmenunu simplificated
Enable swedish translation
window titles
Add .gitattribute, fix github linguist mistakes

No, qTox isn't written in TypeScript, those are XML translation files.
Merge branch 'pr634'
Fix typo
fix qtox.pro for jenkins
reorder libs
Add identifier, prepare for code signing on OS X
Add info.plist for OS X install
Add info.plist install, fix @dubslow
update russian translation
Merge branch pr640

Fixes conflicts manually
Merge branch 'pr641'