Libais

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* New release because a large binary went out in 0.10

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* Add a test directory and test of all top level msgs except 20 in python
* Begin cleanup of test_libais.cpp
* Almost all decoders require pad bits now
* linted - lots of formatting changes
* Start implmenting Msg 17 GNSS differential corrections
* Convert FIX to TODO and put (schwehr) after each to assign them to myself.
* remove bool casting of bitset[offset]
* Implemented 8 1 26
* Clean up c++ logical oprators. Do not use and, or, and not
* Message 24 needed pad. Fixed
* Removed print()
* remove almost all cout/cerr that were not in print()
* Remove lots of dead code
* Pass pad into ais.decode in python, but handle without

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* ais.decode now requires the pad bits in python
* Added RIS 8_200_{10,23,24,40,55}
* Implmented the rest of Circ 236 BBM
* Implmented all Circ 289 messages except ABM route and BBM env sensors
* Implemented AIS messages 6, 9, 10, 12, 15-17, 20-22, 23, 25-27. Still payload work to do.
* Imported rolker's CMakeList.txt

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* MANIFEST.in now has VERSION
* Implemented AIS messages 7, 13, 14, 18, 19, 24

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* Added MANIFEST.in
* setup.py compliant with pypi
* Added AIS area/zone messages 8:1:22 and 8:366:22

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* ais21.cpp: new file - AtoN status
* ais.h: fix CHECKPOINT for emacs 23
* ais.h: Proper inheritance from AisMsg of message_id, repead_id and mmsi
* ais.h: started trying to define 8_366_34 - zone msg
* nagios_pg_ais.py: new file - monitor db statios with nagios ssh or snmp