+ rewrite lookup support to use WebPAC::Normalize [2.28]
+ marc_leader shouldn't really be included in hash returned by data_structure
+ add checks for search directive in normalization to parser
-- fix-length fields (<100) support
++ lookup to another input file
++ support splitting of config yml to multiple files
++ add set and get to create in-memory lookup
++ support marc_remove('*')
++ fix-length fields (<100) support [2.29]
+- load_ds/save_ds should use on-disk hash to preserve inodes
+- leader(position,...), indicator(field,nr) nr=1|2 for MARC input
+- validate should ignore modify_file
- add option to specify output marc path in config.yml
-- support splitting of config yml to multiple files
- add dBase input format
- remove delimiters characters from index and query entered
- delete unused files in database directories
- scoring for various fields in input/*.xml
- marclint - validate 035$9 as valid
-- lookup to another input file