Moves the cpp files up one dir, as suggested in discussion of PR #40.
Somehow this has pieces of the time series moving average thing in it, but the conflicts are probably fixed.
Coverage remained the same when pulling 972646c2d7db3669b0d0c99ff992efbc86e8780e on kjs73:move_cpp_files into 5fb017918a416e37921448b114021b439ba3f56a on pele-python:master.
Moves the cpp files up one dir, as suggested in discussion of PR #40. Somehow this has pieces of the time series moving average thing in it, but the conflicts are probably fixed.