[ofiwg] coverity replacement

[Hefty, Sean]

The ofiwg github projects have made use of Coverity for static code analysis, which has proven useful in identifying bugs without generating hundreds of false warnings (I'm looking at you Klockwork).  However, it went down for maintenance nearly a month ago, with no responses to emails or updates on when or if the service will ever come back.

At this point, I think we need to look at alternatives.  Does anyone have any personal recommendations on any analysis tools that integrate with github?  I've done some searches for possible replacements, and Code Climate came up as a possible alternative.  Has anyone used this or know of something better?

https://codeclimate.com/pricing/

We are still using Travis CI and AppVeyor for testing, so this would primarily be for static analysis.

- Sean