fix(contrib/coreos): bump timeouts for etcd and fleet

See discussion in https://github.com/deis/deis/issues/1688
Merge pull request #1689 from carmstrong/1688-bump_etcd_timeout

fix(contrib/coreos): bump timeouts for etcd and fleet
ref(tests): move test scripts under tests/bin

There are several shell scripts in the $PATH on the CI nodes and
also defined in Jenkins jobs directly. This moves them to a central
location under version control for maintainability.
Merge pull request #1702 from mboersma/test-scripts-in-git

ref(tests): move test scripts under tests/bin
feat(controller): pipe release notes to app logs

Whenever a release is created for an application, its logs will now
also be seen in `deis logs`. The log pattern follows the same syntax
as Heroku's logs:

    2014-08-25T20:23:53.275002+00:00 heroku[api]: Enable Logplex by me@bacongobbler.com
    2014-08-25T20:23:53.275063+00:00 heroku[api]: Release v2 created by me@bacongobbler.com

The log syntax coming from the controller looks like so in the app logs:

    2014-08-25 14:25:50 deis[api]: bacongobbler created initial release

Which follows the same syntax as our app logs:

    2014-08-25 14:25:50 island-larkspur[web.1]: listening on port 5000...