* Show subtitles when Jigasi sends transcription results in JSON
* fix: Import PropTypes from prop-types.
* apply feedback on initial PR
* Changed Object to Map, alphabetic ordering fixes ,css changes in transcription subtitles
* Sends Map of transcriptMessages as prop to Component
* Documentation fixes and uses config in redux state
* Minor doc fix
* rename feature 'transcription' to 'subtitles'
* Moves subtitles config to interfaceConfig and minor fixes
* minor lint fix
Nik