Cleanup.

If you synced ArXiv PDFs, you can now remove ArXivPDFs collection from
your database.
Limit job queue data sent to the client.

To nor overload the client with too much data.
Bugfix.
Style.
Process publications through jobs.
Fix. It seems parentheses are required.
Updated PeerDB.
Removing debugging return.
To assure background is running in installation wizard.
Merge branch 'development' into tasks