changed CHANGES.txt
changed Main class -- added comments
changed PreparedConfiguration class -- fixed bug: it cannot process tsv files
chnaged CSVFileGenerator and HeaderlessCSVFileGenerator classes -- refactoring
added integration tests for processing 'prepare_parts' with tsv files
added data file set for integration tests of tsv files processing
changed data file set for integration tests
upgraded td-bulk-import.jar for bin/td-bulk-import
changed bin/td-bulk-import -- minor change
changed ColumnType class -- deleted unnecessary comment from the class
changed bin/td-bulk-import -- configured logging.properties
added logging.properties
updated td-bulk-import.jar
changed several classes -- changed logging codes
updated td-bulk-import.jar
changed Constants, PrepareConfiguration and FileReader classes -- deleted feature for writing error records to 'error-records.txt'. error records are written to log files
changed bin/td-bulk-import -- deleted error_record_output option
updated td-bulk-import.jar
changed TestPrepareParts class -- refactoring
updated td-bulk-import.jar