1) :hirm is broken up into :irm, :hirm_lib and :hirm.
2) :headers is removed
3) :relation_variant is split off from :util_distribution_variant in order to avoid cyclic dependencies.
4) A pretty small irm_test is added.
5) test_irm_two_relations.cc is upgraded to use single_step_irm_inference, and because of that must set the distribution hyperparameters from the IRM that is loaded from disk.
6) Fixed an unused variable warning in relation_test.cc
1) :hirm is broken up into :irm, :hirm_lib and :hirm. 2) :headers is removed 3) :relation_variant is split off from :util_distribution_variant in order to avoid cyclic dependencies. 4) A pretty small irm_test is added. 5) test_irm_two_relations.cc is upgraded to use single_step_irm_inference, and because of that must set the distribution hyperparameters from the IRM that is loaded from disk. 6) Fixed an unused variable warning in relation_test.cc