forked from mfulz_github/qmk_firmware

Re-add in flip, flip-ee, dfu and dfu-ee targets to project makefiles (thanks to Opendous Inc.) Fix allowable F_CPU values comment in project makefiles.
Re-add in flip, flip-ee, dfu and dfu-ee targets to project makefiles (thanks to Opendous Inc.) Fix allowable F_CPU values comment in project makefiles.