add options to skip generation of cmake config and pkg-config files (fix #360)
add options to skip generation of cmake config and pkg-config files (fix #360)

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