Sqitch: add process schema and table
Sqitch: add index for process status
Sqitch: add index for process created_by
Sqitch: add indexes for process timestamps
Sqitch: add index for process subclass_name
Add Genome::Process

This is designed to be a very light-weight base class for keeping
meta-data about commands that run workflows.
Sqitch: add process status_event table
Sqitch: add index for status_event timestamp
Add Genome::Process::StatusEvent

Also have update_status set 'created_at', 'started_at', and 'ended_at'.
Restore sqitch.conf to original (inadvertent change)
Removed redundant process_process in index names
Reuse $pkg instead of spelling it out
Use gsc.wustl.edu as email
Add tag to sqitch.plan
Merge pull request #194 from davidlmorton/vrdb

Genome::Process