Change log for nmea_navsat_driver package

0.6.1 (2021-01-16)

Use Python's SocketServer rather than low level socket APIs. (#92) This simplifies code and makes it easier to add TCP support in the future. The buffer_size parameter is no longer necessary because this is an internal detail of UDPServer.
Add documentation that passes pydocstyle. (#88)
Add an Option to Use GNSS Time and Improve Time Parsing. (#79)
- Add an optional parameter use_GNSS_time to use the time from the GPS sentences for ROS message time instead of using system time.
- Improve GPS time parsing to support nanosecond precision on devices that support it.
- Improve GPS time parsing to use RMC message for date when available.
- Improve GPS time parsing to resolve ambiguities in date and century using system time.
Refactor all nodes into entrypoint scripts. (#76). This will reduce the difference between ROS 1 and ROS 2 code, because ROS 2 uses Python entry points to install executables.
Fix PEP8 Violations (#68). All Python modules and scripts now pass pycodestyle --max-line-length 120 src/libnmea_navsat_driver/ scripts/*
Add nmea_serial_driver launch file (#60)
Removed roslint as build depend. (#59) roslint was accidentally re-added as a build dependency in #25.
Contributors: Ed Venator, Ryan Govostes, Tony Baltovski, Xiangyang Zhi, diasdm

Add support for IMU aided GPS systems like the Applanix POS/MV, whose NMEA strings typically begin '$IN'. (e.g. $INGGA). Add support for VTG messages, which contain Course Over Ground and Speed Made Good. These are useful when not using RMC messages and you don't have a heading sensor. (#30/#58)
Add a NMEA socket driver node, which is like the existing serial driver node, but instead of attaching to a TTY handle from a serial port, it listens to a UDP port for NMEA sentences. (#32)
Add code to handle serial exception to allow node to exit cleanly (#52)
Cleanup CMakeLists, package.xml; using package format 2. (#28)
Update maintainer to Ed Venator (#38)
Add GLONASS support
Updated driver to accept status of 9 which some novatel recievers report for a WAAS (SBAS) fix. See http://www.novatel.com/support/known-solutions/which-novatel-position-types-correspond-to-the-gga-quality-indicator/
Contributors: Ed Venator, Eric Perko, Loy, Mike Purvis, Patrick Barone, Timo Röhling, Vikrant Shah

Fix remaining parse problem with NovAtel receivers (empty field specified for num_satellite).

Add debug logging output to the parser (PR #8, Mike Purvis)
Add queue size arguement to publishers to fix warning on Indigo (PR #9, Mike Purvis)
Add support for roslint and some related cleanup (PR #10, Mike Purvis)

Initial release for Indigo
Fix #5: Empty fields spam rosout with warnings. Driver now outputs sensor_msgs/NavSatFix messages that may contain NaNs in position and covariance when receiving invalid fixes from the device.

Allow the driver to output velocity information anytime an RMC message is received

Moved to nmea_navsat_driver package
Removed .py extensions from new-in-Hydro scripts
Now uses nmea_msgs/Sentence instead of custom sentence type
nmea_topic_driver reads the frame_id parameter from the sentence, not from the parameter server

Initial release for Hydro
Converted to Catkin
nmea_gps_driver.py is now deprecated and will be removed in I-Turtle. Replacement node is nmea_serial_driver.py .
Refactored code into NMEA parser, common ROS driver and separate nodes for reading directly from serial or from topic.
Bugs fixed: - nmea_gps_driver crashes when a sentence doesn't have a checksum * character ( http://kforge.ros.org/gpsdrivers/trac/ticket/4 ) - Add ability for nmea_gps_driver to support reading from string topic ( https://github.com/ros-drivers/nmea_gps_driver/issues/1 ). Use the nmea_topic_driver.py node to get this support.