Rename the gfunc directory to just func
Start renaming ckernel_deferred to arrfunc
Rename the ckernel_deferred struct to arrfunc
Rename lift_ckernel_deferred to lift_arrfunc
Rename lift_reduction_ckernel_deferred to lift_reduction_arrfunc
rolling_ckernel_deferred to rolling_arrfunc, take_ckernel_deferred to take_arrfunc
Rename the remaining ckernel_deferred to arrfunc
Merge pull request #43 from mwiebe/arrfunc

converting ckernel_deferred into arrfunc