Usage:
Terminal 1: roslaunch crazyswarm sim.launch
Terminal 2: python3 example_distributed.py

remove NRF and radio submodules, don't build fw in build.sh

do not assume that joystick 0 must exist

Crazyflie_ros will be deprecated in favor of the Crazyswarm. In order
to avoid unnecessary deep dependencies, we move all the custom messages
and services directly into the Crazyswarm project.

This change also avoids to have crazyflie_cpp twice. Now, only the one
that comes with crazyflie_tools is used.

Remove dependency to crazyflie_ros by adding msg/srv directly here.

Fixes error when retrieving unavailable CF battery status

Change "N/A" -> "Err" as per discussion in #282

implements #232

This dependency is required if the srv/msg descriptions are in the same
package, see https://answers.ros.org/question/53265/catkin-messages-and-node-in-same-package/

Fixes issue #461.

Add dependency for nodes to messages

In case the motioncapturetype is set to "none", logging is enabled, and
logging_pose is enabled, the current pose will be still shown in rviz.

This is in particular useful for testing with LightHouse, LPS, or flow
deck.

The updated version of libmotioncapture has a refined API, Python
bindings, factory method to avoid repetitive code, and improved
OptiTrack support.

This follows through with the discussion at
#447, namely:

* Remove the (out-of-date) submodules of client and lib
* Update the documentation to advice users to use cfclient for firmware
  updates. This is required, because the most recent update procedure
  also updates the deck firmware (e.g., LightHouse deck).
* Clarify in the documentation, that the Crazyradio firmware has to be
  updated, even for new radios (they ship with an old firmware).
* Remove the prebuilt firmware for STM32 and NRF51 firmwares. Instead,
  specify the last tested official release in the documentation.

Show current pose of the Crazyflies even if no external mocap is used

This is not supported by CI nor the current maintainers.

Fixes issue #476.

Remove Python client and lib; update information on firmware

Fix docs build  #463 and add CI

Fix #455 Py2 ROS import error

comments

…SC-ACTLab/crazyswarm into feature_upgrade_libmotioncapture

Switch libmotioncapture to https://github.com/IMRCLab/libmotioncapture

do not log point cloud files by default

Addresses issue #484.

* SDCC is not required anymore, since we removed the radio-firmware
* ros-[ROS version]-vrpn is not required anymore (VRPN is now a
  submodule of libmotioncapture)
* ros-[ROS version]-joy was missing, see issue #353

Docs: update dependencies for physical experiments

Docs: correct configuration description of external tracking.

Docs: add description of single-marker tracking

Generate "install dependencies" docs from CI script

In the current documentation it remained unclear that we support LPS,
LightHouse etc. This updates the documentation throughout. The biggest
change is in configuration.rst, which required some re-ordering of
paragraphs.

Addresses issue #108.

Docs: Clarify that we support not only mocap for external tracking

* Fix two failing Python Tests on Ubuntu 20.04

* Update test_videoOutput to use the correct Python version
* Add missing information to docs
* List ffmpeg-python and ffmpeg as optional dependency

CI:
* remove unused embedded gcc
* avoid using sudo for pip (this was also causing the documentation to
  suggest using sudo, which is bad practice)

Fixes issue #496

Usage:
Terminal 1: roslaunch crazyswarm sim.launch
Terminal 2: python3 example_distributed.py

* Improved example_distributed
* The new ROS simulator can be used with

$ roslaunch crazyswarm hover_swarm.launch sim:=True
$ (python-script-without --sim-argument)

* Implements some missing features

…into dev-sim-ros