stack pages is under rosbuild, should we remove this? but indigo still have rosstack packages
does rqt_dep is the replacement of rxdeps? but it is not  tools ando also needs roscore running...
add link to roscd rosls
decieded to remove roscreate/rosmake stuff
also remove rqt_dep/rxdep
add rospd, rosd, rosed, roscp
mv rxgraph -> rqt_graph
mv rxplot -> rqt_plot
mv rxbag -> rqt_bag, images is not good as before...
mv rxconsole -> rqt_cosole, wikipage is not good as before...
add rqt
add catkin
fix layout
fixed layout
add ros_logo