Merge pull request #25 from pmorie/build-images

Add test golang app
Merge pull request #26 from pmorie/build-images

WIP: add integration tests for build images
Changes to command line structure
Reorg of code in main function to match new arguments
Merge pull request #27 from kraman/build-images

Changes to command line structure
Flip RUNTIME/BUILD image argument order
Merge pull request #28 from kraman/build-images

Flip RUNTIME/BUILD image argument order
Fix indirect build
Merge pull request #29 from kraman/build-images

Fix indirect build
Update README