bug #40748 linuxgpio doesn't work on Raspberry PI rev. 2.
        * linuxgpio.c: fixed check for unused pins to ignore the inverse flag 
        * pindefs.c: fixed fill_old_pinlist to not create an empty mask with inverse flag set



git-svn-id: http://svn.savannah.nongnu.org/svn/avrdude/trunk@1251 81a1dc3b-b13d-400b-aceb-764788c761c2
Merge branch 'master' into avr109