Update changes.md
Validate workflow keys against :onyx/name vals in the catalog.
Use remove rather than filter/complemnt.
Validate submit-job workflow names for HTTPCoordinator
Merge pull request #27 from lbradstreet/0.3.x

Validate workflow keys against :onyx/name vals in the catalog.
Lucas Bradstreet contrib
Update changes.md
add prismatic/schema
introduce onyx.validation
include existing workflow validation
validate job on sumbit
add validation test
move validation tests to own namespace
Merge pull request #28 from bblanton/add_catalog_validation

Add catalog validation
Adds bblanton to contrib
Update changes.md
Merges in 0.3.x changes.