Flatten import hierarchy

We import all packages in a flat hierarchy, with the package name, a
period, and the task.

Using a flat heirarchy eliminates the case where a/b/c != a/d/c.

As a side effect, this closes #4
Status Job ID Name Coverage
  Build
passed #1242
docker
linux

00:00:30

passed #1243
openswift atbuild
osx

00:00:04

passed #1232
docker
linux

00:00:30

passed #1233
openswift atbuild
osx

00:00:05