pass uuid to Metadata.pm

to avoid "Need UUID or existing metadata file!"
at Metadata.pm line 56
Improve Readcount test
remove version 0.2 exception which is no longer true
Make required parameters required.
Refactor out validate and command methods
Test expected command strings for all versions
Redirect error logs to /dev/null for versions previous to -w option
stop passing non-existant file
Make file_name gathering more flexible for combining reports
Fix how alignment result is determined in test object
Add a model pair type with a fixed input vcf file
Bump bam-readcount version
Get docm vcfs from imported variation list builds
Use keys of the expected hash
Use Genome::Sys for validation. use_version already has a default.
Merge pull request #134 from gsanders/readcount_error_flood

Readcount error flood
Merge pull request #127 from thepler/thepler_uuid_cghub_download

pass uuid to Metadata.pm
Merge pull request #141 from apregier/docm_in_trio

Docm in trio