gtklp shouldn't depend on cups

[Petar Bogdanovic <petar@xxxxxxxxxx>]

Hi,

a gtklp installation should not pull the whole cups package, since its
binaries only depend on libcups:

	$ ldd /usr/bin/gtklp | grep cups
		libcups.so.2 => /usr/lib/libcups.so.2 (0xb79ba000)
	$ ldd /usr/bin/gtklpq | grep cups
		libcups.so.2 => /usr/lib/libcups.so.2 (0xb799e000)
	$ pacman -Qo /usr/lib/libcups.so.2 
	/usr/lib/libcups.so.2 is owned by libcups 1.3.6-1

With `gtklp -S' one may specify remote cups servers so a missing local
cups daemon is not making gtklp useless.


Is this worth a PR?


Thanks,

Petar