add rtnet dependency

remove not needed comments to improve comparing

delete project specific settings from file
insert new package curl command line tool and library for transferring data with URL
Fix old copy and paste error in source.check of linux_scnd.
Don't copy libtinyxml's include dir to targetfs.
ros_comm: Copy rosconsole.config to targetfs.
Provide a patch for ros_comm to support TiMS protocol.
Add new package librackrtros.
Add new package librtros.
openni: Use python of build system.
librackrtros: Fix source.build (Use toolchain specified by LiRE).
scripts/install/client.py: Use python of build system.
linux_scnd: Always deduce version from Makefile.
Add new ROS meta-package geometry.

This meta-package needs the following packages:

- ros/geometry
- orocos/orocos_kinematics_dynamics
- ros/angles
- ros/geometry_experimental
- ros/actionlib

See source.build for further information.
Fix copy and paste error in common_msgs build scripts.
Make common_msgs compile again.
Added new packages libsdl, sdl_image, yaml-cpp and orocos-bfl.
correct comments

correct ignored files