Fixes a typo on stereo camera info service calls

Script works after correcting the call names.
move image_rotate.cpp to nodelet directory according to the directory convenstion of image_pipeline

(cherry picked from commit c873a90bacdef7c5889700149ef74c78d44ec4fe)
make image_rotate nodelet class

(cherry picked from commit 6d402292dd5418fa7c72abecf3f7e0158062eb21)
add executable to load image_rotate/image_rotate nodelet.
add xml file to export nodelet definition.

(cherry picked from commit 4d7dc153ead6dc723a00ede7aaa138517f44197a)
use getNodeHandle rather than getPrivateNodeHandle

(cherry picked from commit 0aa43778586cdfc15c7162a448b6393a20d7b20c)
use NODELET_** macros instead of ROS_** macros

(cherry picked from commit fd082f411b4273dab21900f9ed3db909b10b8c70)
update maintainer

(cherry picked from commit fb1506c753d96020e2c9724ed4715e60cf7051c8)