Disable Reek for repo

This tool still needs some work and reports issues that aren't really
issues. We'll revisit it in a little while.

Change-Id: I89cdbfd19e4fa09814c27bd16d7260d48d309a52
Reviewed-on: http://gerrit.causes.com/45337
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>
Change Travis runs to use `overcommit --run`

This feature was recently added and allows us to run all pre-commit
hooks against this repository. Changing our Travis runs to us it gives
us two benefits:

  * We can dog food the feature itself to ensure it continues working
  * We can add additional tests that this repo should run by adding
    Overcommit hooks, which is a good incentive to add more hooks

This also means that our pre-commit process and our actual CI runs are
now at parity with one another, so there should be no discrepancy
between the two.

Change-Id: I632b67ed5fbfe15824154f8de1bbfd95fe167171
Reviewed-on: http://gerrit.causes.com/45338
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>