Namespace bash functions under build
Refactor GCS parts of new release process
Added scheduler binaries plus other misc fixes

* Support cleaning out built docker images
* Use bash arrays in places
* Lock etcd version we are testing against
Add support for versions in dockerized build.
Match shell style guide.

Looking at https://google-styleguide.googlecode.com/svn/trunk/shell.xml
Merge pull request #1221 from jbeda/dockerized-deploy

Fix up dockerized build and release build