Make VariantReporting::Process::CreateReport
Allow Genome::Process to handle log-file location.
Pass process_id to Commands

It will be used to set up appropriate SoftwareResult::User
relationships.
Update expected xml to expect process_id
Create command to symlink results of a Genome::Process
CHANGELOG Remove output_directory property from CreateReport

The 'genome variant-reporting create-report' command no longer takes an
'ouptut-directory'.  The reports will be saved to a disk-allocation
instead.  To obtain symlinks to the reports run 'genome process
symlink-result'.
Add 'genome process list' command
Merge branch 'master' of github.com:genome/genome into process_vr

Conflicts:
	lib/perl/Genome/VariantReporting/Suite/Joinx/Homopolymer/Expert.t
Merge v3 and v4 into v5 test-data
Make transients optional
Update docs
Merge pull request #236 from davidlmorton/process_vr

Make VariantReporting::Command::CreateReport use Genome::Process