Fixed compile issue where path.h defined the symbol PATH and was then included by two source files, causing a linking conflict.
Changed RLFL_has_flag to make more sense (formerly it would return true if the cell contained *any* of the flags in the mask, now returns true if it contains *all* the flags).
Fixed a bug where PyArg_ParseTuple was overwriting some parameters because the parameters were of the wrong type (bool instead of int).