Whitespace.
Allow access to the additional columns that were found.
Whitespace.
Rename "ignore_extra_columns" to "allow_extra_columns".

We're not just ignoring them any more!
spelling: preceed* => preced*
Create add_ methods for links to profile items and subject mappings.
Add support for setting tags when creating subject mappings.
Consolidate get() attempts to single statement.
Revise file_path doc text for correctness.
Remove unused include.
Test that the correct columns are "extra".
Only reload if there's an existing object.

Otherwise the new object gets dropped instead.
Query the context instead of inspecting object's internal hashref.
Merge pull request #36 from tmooney/tag_somval_subject_mappings

Allow Tags in Subject Mapping Importer for Somatic Validation
Merge pull request #57 from tmooney/dont_uncreate_new_owners

Only reload the Allocation's owner if there's an existing object.
Test failure when nonexistant resource file or vcf provided
Find simple errors before the workflow starts.
fix test output consistency
Always add our errors in (if any) before returning errors.
Resources and plans validate_for_reading input files before YAML load.