Lazy fontset loading.

Thanks Johannes Hofmann <Johannes.Hofmann@gmx.de>!
Merge branch 'master' of git://git.suckless.org/st
Lazy font unloading too.
Merge branch 'master' of git://git.suckless.org/st
Fixing the selection scrolling and the selection naming.

Thanks p37sitdu@lavabit.com!
Fixing the selection in a single line again.

Thanks p37sitdu@lavabit.com!
Fixing bad highlighting on first SNAP_WORD multiline select.
Implementing mouse focus and all events.
Add some comments about the other mouse reporting modes.
This is a shorter bit handling in MODE_MOUSE.
Adding true mouse motion support.
Bumping up the xfps so mouse motion won't reap the CPU.
Merge branch 'master' of git://git.suckless.org/st