Member variable Tape::lbp is now optional

catalogue/Catalogue.hpp

catalogue/CatalogueTest.cpp

catalogue/OracleCatalogue.cpp

catalogue/RdbmsCatalogue.cpp

catalogue/RdbmsCatalogue.hpp

catalogue/SqliteCatalogue.cpp

catalogue/TapeForWriting.cpp

catalogue/TapeForWriting.hpp

catalogue/catalogue_common_schema.sql

catalogue/catalogue_schema.pdf

common/dataStructures/Tape.cpp

common/dataStructures/Tape.hpp

rdbms/OcciRset.hpp

rdbms/Rset.cpp

rdbms/Rset.hpp

rdbms/SqliteRset.hpp

rdbms/Stmt.cpp

rdbms/Stmt.hpp