Rename project "charmed_ops"

[timClicks]

The project's name has gone through lots of churn already, but it's still not right. ops is far too generic. It will be impossible to search for and difficult to describe to others. charmed_ops, would work well. It's easy to say, retains the "ops"/"operator" motif, stays on brand with the rest of Canonical's offerings and says exactly what it does.

[niemeyer]

People I discussed this with find ops shorter, cleaner, and sweeter, and I agree as well.

We won't reach consensus about naming.