Remastered

Compatibility improvements:

• Better interoperability with database (auto downloading recent db build, using custom database)
• API improvements for VDJdb-server app
• VDJdb-standalone now uses a specific "slim" database release to produce more concise output

Changes:

• More flexibility in V/J matching
• Filtering based on VDJdb confidence score
• Automatic summary generation for antigen gene and species