Includes changes to remez and kaiser function calls

Gray code type fix

Merge pull request #57 from chiranthsiddappa/release-2.0.2-w-3.9

Release 2.0.2 w 3.9

New minor release for sqrt bug fix

Version 2.0.0

Removal of pyaudio_helper and rtlsdr_helper
PEP 8 Changes for class and method names

DD carrier sync updated

Minor release

* New pulse shaping
* Print statements changed to logging and warnings

Versioned release for viterbi rate 1/3

optfir was removed