upgrade trigger constraints to run on deletes as well as inserts.
Update liquibase so it updates on change of the file.
Merge branch 'master' into Propagate-deductions-on-deletes
Add check for runaway propagation, fixed currently at 1K new inserts.
Add tests for cascading deletes of inference and premises.
added change
Merge pull request #28 from ChiralBehaviors/Propagate-deductions-on-deletes

Propagate deductions on deletes