Release releases/5.7.3

version number updates for release 5.7.3

Release releases/5.7.2

version number updates for release 5.7.2

Release releases/5.7.1

version number updates for release 5.7.1

Release releases/5.7.0

version number updates for release 5.7.0

Release releases/5.6.19

version number updates for release 5.6.19

Release releases/5.6.18

version number updates for release 5.6.18

Version 5.6.17

releases/5.6.17

creating SYMPHONY/releases/5.6.17 from SYMPHONY/stable/5.6 (rev 2733)