minor change
changed BulkImportMain class -- merged 'uploadParts' and 'prepareAndUploadParts' methods
changed UploadConfiguration class -- added a new method 'hasPrepareOptions' method for checking that 'parepare' options are included
changed TestBulkImportMain class
changed BulkImportMain class -- renamed method: 'prepareParts' to 'prepare', 'uploadParts' to 'upload'
changed Constants class
minor change
updated td-bulk-import.jar
minor change of BulkImportMain class -- deleted unused import statements