pull available_fields and field_descriptions of VafInterpreter into helper class
pull available_fields and field_descriptions of ManySamplesVafInterpreter into helper class
pull single_vaf_headers and per_library_vaf_headers of FullReporter into helper class
get basic_available_fields from single_vaf_fields and per_library_vaf_fields to remove code duplication
Remove obsolete modules.

They reference tools under GMT::Maq, which no longer exists.
Build Lister: order_by default value set to date_scheduled
Remove old `gmt capture germline-model-group-restart` command.
Use existing variable rather than calling non-existent subroutine.
Merge pull request #158 from tmooney/fix_bamqc_event

Bugfix for BamQC Event
Merge pull request #150 from tmooney/remove_maq_references

Remove obsolete modules that reference GMT::Maq commands.
Build CLI Lister: use created_at as default order by
Merge pull request #152 from ebelter/build-lister-by-date-sheduled

Build Lister: order_by default value set to date_scheduled
Merge pull request #154 from tmooney/remove_modelgroup_restart

Remove old `gmt capture germline-model-group-restart` command.
Updated class browser cache.
Updated `genome` tab completion.
Updated `gmt` tab completion.
Merge pull request #148 from susannasiebert/vaf_fields

Make a helper module to consolidate VAF interpreter fields