traces: do not attempt to merge .tmp files.
Update changelog for 0.0.156 release
cdrs: do not include views not used in core.

The two views here are used in ccnq3-support, there's no need to include them in core.
Update changelog for 0.0.157 release
Update changelog for 0.0.157 release
opensips: Allow to set the FR (failover) timer value