Static analysis from CI

[karimnaaji]

We periodically run static analysis manually, it would be beneficial to have it integrated with our build system running through CI, with possibly email notification on master builds.

Some options:

• http://clang.llvm.org/extra/clang-tidy/
• cppcheck (available through brew on OSX)
• https://scan.coverity.com that we currently use

[matteblair]

And of course the clang static analyzer: http://clang-analyzer.llvm.org/scan-build.html

[tallytalwar]

Including this in 0.9.1, will be a good one to end the year on and start the new year with a hope to have more robust code :D.