add tests for marcbib_xml that I forgot to add in earlier for pull request #51
add LC Classification as LC_TOP_FACET_VAL to CallNumUtils
initial coding and tests for LC call numbers in callnum_facet_sim field for hierarchical callnum facets
callnum_facet_sim replaces all callnum facets
marked CallNumTopFacetTests as deprecated - class will be deleted
load translation map in getCallNumHierarchVals method and mark all other call num facet methods as deprecated
rewrite CallNumberTests for new callnum field.  possibly migrate these tests to callnumFacetSimTests?
removing test data files and test code files associated with old call number facet fields
removing test data files and test code files associated with old call number facet fields
add callnum_facet_sim  gov doc value tests
fix gov docs callnum_facet_sim algorithm
move gov doc callnum_facet_sim tests out of old CallNumberTests class and into CallNumFacetSimTests
removing test code associated with old call number facet fields