Added case check- references with no URI (#123=<#something>).
Added more precise error output. (Which design is the error happening in)
Added relative directory handler. (Untested. Needs working split to test.)
Fixed logic error where, when parsing children with references and anchors, the child's child not properly getting parsed would not cause the child to report an error to the parent.
Caught another case of printf.
Made *_pmi.stp files have proper URIs in their references.
Theoretically proper split output has been achieved as of this release. Testing required.