Major release

This beta release contains a lot of new features and fixes, some listed below. Please see the ReleaseNotes.txt file for the full list.

#15 Graph analysis for communications (Filipe Simões and Luis Nassif)
#62 Resume aborted or stopped processing: new options --continue & --restart (Luis Nassif)
#85 Audio transcription: implementations with Azure and Google cloud, must set credentials (Luis Nassif)
#156 First version of similar image search feature, disabled by default (Wladimir Leite)
#26 Initial ElasticSearch indexing module, not accessed by java GUI for now (Luis Nassif)
#29 Improved HexViewer with goto, search, charset selection and layout customization (Guilherme Dutra)
#70 & #152 Regexes and validators for bitcoin cash, ethereum, ripple and bitcoin private keys (Fabio Pfeifer)
#25 Store small subitems, thumbs and ocr text in containers, speeding up case copying and deletion (Luis Nassif)
#61 Parsers for torrent and resume.dat files (Fabio Pfeifer)
#31 Parser for Windows 10 user activities timeline (Matheus Bichara)
#14 Basic parser for SkypeV12 (Patrick Bernardina)
#60 Viewer for Autocad DWG files (Alberto Magno)