First version performing automatic upload

Features completed

Major features

• Detect of almost-duplicate images using percerptual hashes
• No longer consider Flickr Public Domain Mark eligible for upload, unless clear U.S Public Domain
• Replace Flickr image title consisting of VIRIN identifiers by their album name, if any
• Enforce minimal delay between successive uploads to meet Wikimedia bot requirements
• Upload mode for each agency: disabled (default), manual, automatic
• Handle change of license for Flickr and YouTube media
• Add DVIDS support for U.S Space Command, Space Force, Air Force Space Command, Space and Missile Systems Center
• Enable automatic upload for images of U.S Space Command and Air Force Space Command
• Add YouTube support for Arianespace
• Download of YouTube videos using youtube-dl
• Retrieval of already upload YouTube videos using their id
• Startup page improvements: AJAX loading of statistics, sortable table

Minor features

• Number of working threads configurable
• Nice error pages for HTTP 404, 500, 501 errors

Behind the scene

• Allow to reset problems, duplicates, ignored media, perceptual hashes
• Mirroring from Phabricator to GitHub
• Dependencies upgrade: Spring Boot 2.2.7, Scribe 6.9.0, Flickr4Java 3.0.4, bootstrap 4.5.0
• Retrieval of web dependencies through Webjars
• Store last update date/time for each media
• Store runtime information (last update start time, end time, duration) for each agency
• Store date/time for each problem
• Rework persistence of metadata information
• Lots of bugfixes, performance improvements, reduced memory usage

Features started

• GitHub actions
• SonarCloud analysis
• Code cleanup, test coverage, documentation