This commit:
- removes std-srvs and rosgraph-msgs recipes, as their sources
now are located in the ros_comm_msgs repository.
- adds a recipe for the new roslz4 package, which rosbag-storage
depends on.
- removes the patch that has been merged upstream.

Besides updating ros-comm, this commit removes the second hash
values, that probably slipped-in during the last update.

The ros-comm 1.9.53 now also contains the new package rosbag-storage.

The ros-comm recipes are updated to 1.9.50 to be in line with
https://github.com/ros/rosdistro/blob/ef3a7449d7f7ef6e691a5724ef6c485e75cfd4af/hydro/release.yaml.

The native packages are not required anymore, because the needed
python scripts during compile time are also provided by the
cross-compiled packages and the python scripts are platform
independent. Only the catkin package is provided as native package.

The ros-comm recipes are updated to 1.9.48 to be in line with
https://github.com/ros/rosdistro/blob/4551e7c32d1b34984410b79bc0ec36afe3d3d245/hydro/release.yaml.
The previously applied patches have been included in 1.9.48 and are
removed from the recipe and this repository.

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

As the license text of the xmlrpcpp changed, the license checksum
is adjusted.

The rostest package requires that the rostest executable can be
found by cmake's find during configure. Hence, rostest depends on
rostest-native.
To implement this, rostest and rostest-native are defined with
different dependencies.

This commit resolves issue #83.

| CMake Warning at /build/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/x86_64-linux/usr/share/catkin/cmake/test/nosetests.cmake:90 (message):
|   nosetests not found, Python tests can not be run (try installing package
|   'python-nose')

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>

Rostest depends on its own package and therefore needs to search
in the devel space for the rostestConfig.cmake during native
build.

| CMake Error at /.../usr/share/catkin/cmake/find_program_required.cmake:5 (message):
|   rostest not found
|

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>