Reorganize the template pkg, make it match upstream patterns

* Storage -> REST
Document test-go.sh, add option to show coverage for all tests
Merge pull request #353 from VojtechVitek/template_registry_structure

Merged by openshift-bot
Merge pull request #360 from liggitt/coverage

Merged by openshift-bot
Fix deployment pod template comparison
Merge pull request #366 from csrwng/fix_registry_deploy

Merged by openshift-bot
Convert builder images to use go
Merge pull request #347 from csrwng/go_build_scripts_2

Merged by openshift-bot