Added script for protcid interfaces matching, much better error logging
Unified also pdb-biounit mapping using InterfaceMatcher
More refactoring
Fixing issue CRK-112: now can deal with 'O' chars in uniprot ref
Fixed issues: duplicated interfaces in pdb biounit vs ours comparison,
now outputting all assemblies per method
Major change: re-did the relations in data model: assembly was not
correctly linked. Now outputting the assembly size in pdb-biounit
comparison file