Load gtk before running tox_thread to prevent possible threading issue.
New utox_save format.

Added code to import settings properly from the old one.

Put some unused bytes so new settings can be added without breaking the
save again.
uTox now loads and saves audio input and output devices.
Fixed issue when clicking urls on windows.

WM_LBUTTONUP doesn't get sent when something steals focus from uTox.
Fixed crash.

messages_selection() didn't handle cases where nothing was selected.
updated