Description of problem:
remove-local command in printconf-tui does not match make and model
in a robust manner.  Right now it checks for the printers ieee string
for make and model or for it's foomatic string but it does not work if
one string is the ieee string and the other is the foomatic string. 
Also it does a case sensitive comparison of strings.  It should do a
case insensitive comparison.

How reproducible:
When plugging in an HP printer

Steps to Reproduce:
printconf-tui --Xremove-local
--device=hal:///org/freedesktop/Hal/devices/usb_usb_device_3f0_212_100_-1_SG01J131VWO
--make="HP" --model="DESKJET 1220C"
  
Actual results:
fails to remove queue

Expected results:
removes queue

Additional info:

printconf-tui --Xremove-local
--device=hal:///org/freedesktop/Hal/devices/usb_usb_device_3f0_212_100_-1_SG01J131VWO
--make="HP" --model="DeskJet 1220C"

does remove the printer.