rtt_roscomm: removed deprecated ROS version check from generated boost headers

std_msgs/Header.h can be included like any other ROS message header file.
ros/common.h is a roscpp header, but usage of typekit headers should not depend on roscpp.
Merge pull request #52 from jhu-lcsr-forks/removed-deprecated-version-check-from-boost-headers

Removed deprecated ROS version check from generated boost headers in rtt_roscomm