useorocos: minor control flow cleanup in orocos_find_package()

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
useorocos: export the targets, libraries and include directories of packages in the orocos_generate_package(DEPENDS ...) list to other packages in the same workspace

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
useorocos: Removed INCLUDE_DIRS argument from implicit catkin_package() call in orocos_generate_package()

...as suggested in https://github.com/orocos-toolchain/rtt/pull/26#issuecomment-36592348

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
Merge remote-tracking branch 'meyerj/useorocos-recursive-package-dependencies'