Avoid duplicated lumi sections when querying dbs.
Split the jobit, file database structure on a per dataset basis.

This will break publishing for now.
Integer conversion is handled by the argument parser.
Rework plotting to present essential information only.
Rework the user interface.

Use subcommands instead of various scripts, and allow to install lobster
locally or system wide.  Also try to make the language in the help
consistent.
Fix html tags in the plotting tables.
Fix the pureput ratio on a per job basis.
Parse event processing information on the worker.

Also add separate columns for events read and written, measure progress by
the amount of events read.