changed PrepareConfiguration class -- deleted unnecessary logging messages from the class
changed PrepareConfiguration class -- implemented configuration of quote char; default='"'
changed PrepareConfiguration class -- deleted unnecessary logging messages from the class
changed CSVFileReader class -- inserted the code for clearing row object within the readRow method
changed CSVFileReader class -- changed the order of method calls wihtin the sample method
changed PrepareProcessor class -- fixed bug the values of file readers/writers' line counters
changed bin/td-bulk-import -- added '--quote' option to bulk_import:prepare_parts2
changed CHANGES.txt
changed PrepareConfiguration class -- created Quote enum to the class
changed ColumnType class -- added new type 'bigint' to the class
changed ColumnSampling class -- changed rank function for type suggestion according to addition of 'bigint' type
changed TestColumnSampling class
minor change of CSVFileReader class
minor change of bin/td-bulk-import
upgraded dataset of integration tests
upgraded td-bulk-import.jar for integration tests