Release 2.0

## Lots of new features and it still retains backward compatibility!

- Added batch mode per issue #28
- Added ALAC wrapper script per issue #28
- Bug fix for issue #29 introduced with release 1.3
- Added output and keep-file options per issue #30
- Moved option check earlier in the script and completely reworked options/arguments processing
- Added long option names
- Added debug info for system API
- Added debug info for config API
- Added multiple debug logging levels, defaults to lowest
  - Default debug level excludes the returned JSON, making it more readable and useful
- Normalized test event output
- Minor fix for error text
- Added version option
- Modified how script version is handled
   - Updated BuildImage.yml
   - Updated Dockerfile
   - Update 98-flac2mp3 init script
- Changed awk pattern match to be more robust
- Removed dedundant system command in awk script
- Updated help text
- Updated README.md
- Updated SECURITY.md

Dockerfile

@@ -1,13 +1,6 @@
 ## Buildstage ##
 FROM lsiobase/ubuntu:xenial as buildstage
 
-# Build arguments
-ARG VERSION
-
-# Add version number for use in container init script
-RUN mkdir -p /root-layer/etc && \
-  echo "$VERSION" > /root-layer/etc/version.tc989
-
 # Stage local files
 COPY root/ /root-layer/