Revert "disabling RPM changelog, timestamp creates issues in CentOS 6.0"
Revert "disabling RPM changelog, timestamp creates issues in CentOS 6.0"

This reverts commit 27d6b7b83d3cb39c27cd28839e219a79dcbfef47.

embree/embree,embree/embree,embree/embree,embree/embree