JobExecutor: displayed Due On datetime is too long

Description of problem:
There is too detailed Due On datetime format on Jobs list. One can start the job with Due On eg. 25/11/2015 10:40, but listed is 2015-11-25 10:40:00.000000000

Version-Release number of selected component (if applicable):
BPMS 6.2.0.CR1

How reproducible:
Always

Steps to Reproduce:
1. Crate a new job
2. See job list

Actual results:
Too detailed date time

Expected results:
Time just HH:mm

Additional info: