Fix strong cert check for self-signed server certificates

If the server is using a self-signed certificate the strong
certificate check for the client cert will fail with a
"The certificate is self-signed" error even if it's a valid
cert. It looks like Qt is propagating the "error" for the server
certificate to the client cert check. Adding the server certificate
as a CA certificate fixes the problem.
Workaround for missing disconnected signals on Windows

Sometimes Qt doesn't emit a disconnected signal for closed
sockets (or it happens before we're listening to those).
Manually emitting the signal in our disconnect function if the
socket is not connected fixes the problem.
Obey Whisper ACL for User-to-User Whispers
Apply suppress ACL before switching channels

People were able to send a few voice packets to the new channel
prior to being switched to their new channel. Applying the Whisper ACL
before changing the current channel should fix that.
Fix compile error
Allow using ChanACL::hasPermission without a cache
Fix Speak ACL for users entering a channel

clearACLCache doesn't just clear the cache, it also adds
some entries, which might be wrong if we're calling it before
changing the channel for a user. Fix this by not using the cache
for the ACL test.
Parse \ in pro files
Build fixes for universal OS X.
Allow hooks in GlobalShortcut to be disabled on Windows via hidden setting.
Turkish translation
Updated french translation
Updated German translations
Mark Server::log as const
Added more logging for Ice callbacks
Try to read system-wide ini files first if running as root
Temporarily disable uiAccess=true
Re-enable uiAccess=true
Merge pull request #70 from Natenom/master

Updated German Translations
Revert back to mumble-g15-helper-based G15 support on Windows.