changed PrepareConfiguration class -- changed the retrieval of 'output' directory
changed bin/td-bulk-import -- changed 'output' dir option into optional option (not required)
updated td-bulk-import.jar
changed bin/td-bulk-import -- fixed bug: cannot pass 'time-format' option to java process
changed PrepareConfiguration class -- refactoring
changed bin/td-bulk-import -- enables upload_parts with prepare_parts
minor change of bin/td-bulk-import
updated td-bulk-import.jar
minor change of bin/td-bulk-import v2
changed bin/td-bulk-import -- changed initial value of 'column-header' in prepare_parts
changed Main class -- fixed bug: cannot pass prepare configuration to upload+prepare processor
updated td-bulk-import.jar