test: Test buildpacks by running example applications.

Signed-off-by: Blaž Hrastnik <blaz.hrast@gmail.com>
test: Use upload-debug-info to upload log dump.

Signed-off-by: Blaž Hrastnik <blaz.hrast@gmail.com>
slugbuilder, slugrunner: Set home to $HOME.

Signed-off-by: Blaž Hrastnik <blaz.hrast@gmail.com>
slugbuilder: Make REQUEST_ID static.

We're not using it at all, it's just there, because.

Signed-off-by: Blaž Hrastnik <blaz.hrast@gmail.com>
bootstrap: Support discoverd+tcp in wait action.

Signed-off-by: Blaž Hrastnik <blaz.hrast@gmail.com>
test, bootstrap: Wait for the blobstore and receiver to start.

Signed-off-by: Blaž Hrastnik <blaz.hrast@gmail.com>