[HWKMETRICS-148]

[stefannegrea]

Update metrics creation to allow users to overwrite previously created metric definitions. The flag defaults to false and is not required.

[jsanda]

The ticket mentions updating the operations for creating tenants as well as metrics. I would like to keep the behavior consistent across operations to the extent possible.

[jsanda]

It can be a little confusing that in the createMetric method we do !overwrite && !resultSet.wasApplied() but in the createTenant method we are just checking !resultSet.wasApplied(). It turns out that because the overwrite logic is in DataAccessImpl, this works out ok. If the query is not a LWT, then wasApplied() will always return true.

[jsanda]

Looks like there are some REST test failures. Once those are fixed, I think this is ready to merge.

[stefannegrea]

The Travis error is really confusing because one build passed and the other failed.

[stefannegrea]

I am still surprised why one Travis build failed and other did not (nor did it fail locally prior to this). I updated the test code to show the line for errors and also rebased on latest master.