Stirling 1.6.4

Signed-off-by: Bob The Builder <bob@ci.prod.valotrading.com>
Stirling 1.6.5-SNAPSHOT

Signed-off-by: Bob The Builder <bob@ci.prod.valotrading.com>
Merge pull request #166 from valotrading/releases/1.6.4

Stirling 1.6.4