Release for latest telemetry support

[anthonator]

Would it be possible to cut a release so telemetry ~1.1 is officially supported?

[adamu]

To add some detail, the latest release does not include #131, so it's not possible to add prom_ex (which depends on telemetry ~> 1.0.0) to a project that is using telemetry ~> 1.1

[gangstead]

#193 is merged in so the next release should allow newer versions of telemetry