add new field .output.artifacts to schema

Using the field you can specify an ORed set of positive glob-style
patterns for artifacts to retain in the .output.directory. It defaults
to including all artifacts.

1 files changed, 0 insertions, 1 deletions

diff --git a/TODO.md b/TODO.md
index 1407dc8..c85bb89 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,3 +1,2 @@
-* It should be requestable which build artifacts are to be retained.
 * There should be a backend supporting a container thingy (e.g. `debspawn`,
   `debocker`, `whalebuilder`).