catkinizing for ROS Groovy (and later)

The changes in this pull request are for moving from the old rosbuild build system to new catking build system.

To comply with both build systems and to be conform with what ros (see e.g. https://github.com/ros/std_msgs) does now, I also propose to rename the current master branch to something like "electric_dev" or "fuerte_dev" and merge this pull-request in a new branch named e.g. "groovy_dev".

In this way, both build systems are still supported and it is clear which code is needed for which ROS-Distro.

This pull-request also contains some not very nice but working cmake commands for copying the correct library (depending on the system, i.e. 32bit or 64bit) to a folder where other packages can include it later on to link against them.
As those packages are static ones, I didn't find a better way. suggestions welcome ;-)