fix #271: Warn about setuptools / distribute arguments not supported for devel space.
fix #271: Warn about setuptools / distribute arguments not supported for devel space.

wkentaro/catkin,scpeters/catkin,ros/catkin,meyerj/catkin,wkentaro/catkin,harmishhk/catkin,meyerj/catkin,jack-oquin/catkin,shyamalschandra/catkin,scpeters/catkin,thaddeustaylor/catkin,jack-oquin/catkin,asmodehn/catkin,harmishhk/catkin,beni55/catkin,asmodehn/catkin,scpeters/catkin,ros/catkin,ros/catkin,shyamalschandra/catkin,jack-oquin/catkin,meyerj/catkin,thaddeustaylor/catkin,wkentaro/catkin,beni55/catkin,thaddeustaylor/catkin,beni55/catkin,harmishhk/catkin,asmodehn/catkin,shyamalschandra/catkin