Revert "Bumped up version to 5.1.5-SNAPSHOT"
Revert "Bumped up version to 5.1.5-SNAPSHOT"

This reverts commit 514be9f9307c56f0e601c33f15eb69c6f3294b4c.

OpenLMIS/openlmis-stockmanagement,OpenLMIS/openlmis-stockmanagement,OpenLMIS/openlmis-stockmanagement,OpenLMIS/openlmis-stockmanagement