serious overhaul to multi-threaidng, extract Traject::ThreadPool, use it in mapping step too
README, mention solrj_writer.parser_class_name for solr 1.4 compatibility
some logic for classifying marc formats
change default thread pool sizes
Merge pull request #7 from atz/master

Trivial space placement typo
move format exception for logs to Util class
marc_sortable_title fix for 245's missing  or
read_write_test single threaded for basic tests
better logging of mapping errors in Indexer, with context
Merge branch 'master' of https://github.com/jrochkind/traject
disable logging under testing
under testing, output solr mock warning just once
pass logger to reader in settings too
Marc4JReader, improved error handling/reporting
log.batch_progress setting
Indexer, don't forget to check for collected exceptions after thread pool shutdown
MarcExtractor, skip corrupt 880 with no  instead of raising
Indexer, log reader/writer classnames
bump version
update README, including remove TODO's that are done