derf/feh — pull request #165 by Evolve32 (2014-07-10 15:15:11+00:00)
Title: Modify scroll-step, add scroll-page-step

I added a new option that is important to me. It allows to change not only image shift step when Ctrl is pressed but also with Alt key (scroll-step, which is exist and scroll-page-step respectively). Also it changes the behavior of command from moving in pixels to moving in term of parts(or percents) of feh's window. Manpage is appropriately changed.