Add a test target that DWIM so that 'make test' doesn't silently fail.
Merge pull request #51 from plobsing/maketrap

Add a test target that DWIM so that 'make test' doesn't silently fail.
Let's be a bit more resilient to no mysql port.

We have ways to figure it out after all.
Adding comment for all fields of mycnf, and which
ones are used by vitess.
Merge branch 'master' of github.com:youtube/vitess
Merge branch 'master' into replication