Fixed crash in uTox.
Update French translation

I removed the words same as english.
Update french translation
removed empty section
Name and status boxes now save when they lose focus.
Completely select toxid when a user tries to select part of it with the mouse.

Some users copied only part of the tox id because the rest was obscured.
Fixed some uTox input issues with xlib.
Switched save directory on windows to real appdata instead of local.

Added code to load everything from the old directory.
Czech language
Added LANG_CS to language enum.
Draw friend request message in friend request window.

TODO: There's a lot of empty space on that window that could be used to draw the message instead of drawing it like a friend status message.
Fixed crash.
Change tray icon until focused

This is to make having unread messages more apparent,
especially when the window is minimized to tray.

I whipped up a new acid-trip-like easy-to-notice icon
for that purpose, due to the lack of an official
tray notification icon mockups. Feel free to change it.
Make icon compatible with WinXP

The icon failed to render under WinXP both
as an application icon in explorer and as a tray icon.
Just opened and saved it again in GIMP and that fixed it.
Don't know what exactly was wrong, the only difference
I noticed is 256 -> 16 color depth change. But since
the image consists just of the black color of varying
transparency, I think it's fine.
uTox is at version 0.1.8
Added MAX_NUM_FRIENDS define.

TODO: Dynamic arrays so number of friends isn't limited to 256.
Extract STRING and i18n definitions to separate headers
Move LANG global variable into ui.c
Implement language detection by POSIX locale
Use new language detection in xlib client