stub out some initial protobuf utils

Some tests too.
move elsewhere
use strict everywhere, sundry fixes

Some basic maintenance:

* use strict mode everywhere
* tweak protobuf test to encourage test coverage
  this helps test existence of the api, not necessarily how the api
  works.
* tweak how tests are covered to only cover tests
add some basic tests for internal utils

Helps with test coverage and basic sanity.
add few more tests for streams
Merge pull request #1 from bewest/wip/protobuf

Wip/protobuf