diaphragm fixes
     * Added NeuroNames xrefs -    Fixes issue #309
     * Standardizing leading upper case for Brodmann areas
     * Added abbreviations from NIFSTD. Addresses issue #308
     * Added defs for red nucleus parts
     * Temporarily weakened some spatial disjointness axioms
     * Adding multiple relationship types, logical defs and textual defs for veins and arteries. Creating new subclasses
     * Adding defs from NCITA
     * Fixed synonym typo. Fixes issue #307
     * Eyelid glands: defs and examples. NT: lacrimal caruncle
     * NTs: tooth whorl and subtypes
     * plural syn for centrale. Fixes issue #304
     * Fixed def of autopod. Fixes issue #303
     * Added UMLS xrefs for neuro subset using NCIT and NIFGA. Fixes issue #302