v0.55.0 — aliases in, job control out

A version-only release No code changes since v0.53.0 — the tree is identical, as it was for v0.54.0. Cut deliberately, so moshcode upgrade and npm both have a fresh version to move to. What these releases actually carry, if you are coming from v0.51.0 or earlier: Your shell aliases work in the pit The pit runs what you type through $SHELL , and it used to do that with -c . A shell started with -c…