added file ead_revised_clean
added prefixes to refs; added comments
added ead_revision.xpr to .gitignore
added definitions

for av.level, m.blocks, a.common
numerous changes
numerous changes
lowercased a bunch of elements
lowercased some more names
added missing did sibling block defiintions
added a materialc, c/c#...
fixed references to e.c# element definitions
added a bunch more definitions, lowercased...
issue #115, issue # 226, issue #116

issue #115, Remove <num> from <physDescStructured>
issue # 226, Update <dimensions>
issue #116, Remove <specifiedMaterials> from <physDescStructured>
issue #114, add @coverage to <physdescstructured>

also changed case of @physdescstructuredtype, removed reference to num
Issue #222, issue #223 remove physDetails and physType
#123 Restore <ptr>; added linking attrs
#215 subarea deprecated; fixed repository
added address
#229: consolidate *nameentry and *name elements

also fixed repository
minor corrections