orocreate-pkg: set ORO_USE_ROSBUILD cmake variable in the Makefile created by orocreate-pkg

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
orocreate-pkg: renamed manifest.xml.tpl to manifest.xml and fixed package dependencies for non-ROS packages rtt and orogen

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
orocreate-pkg: added new script orocreate-catkin-pkg and command line option orocreate-pkg --catkin
The package.xml file will only be created in catkin mode.

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
useorocos-pkg: added --upgrade option to update Makefile and manifest.xml of packages created with older versions of this tool for orocos-toolchain 2.7+

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
cmake: use catkin_add_env_hooks() macro to install catkin env-hooks if available
Merge branch 'orocreate-pkg-updates' of https://github.com/meyerj/ocl into toolchain-2.7
Merge branch 'catkin-env-hooks' of https://github.com/meyerj/ocl into toolchain-2.7