Fix DescribeConversionTasks bug w/ instance tasks
Fix DescribeConversionTasks bug w/ instance tasks

nagyistoce/euca2ools,vasiliykochergin/euca2ools,jhajek/euca2ools,gholms/euca2ools,gholms/euca2ools,vasiliykochergin/euca2ools,nagyistoce/euca2ools,jhajek/euca2ools