fixup! WIP: add arcyd fetch command
fixup! WIP: add arcyd fetch command
fixup! WIP: add arcyd fetch command
fixup! WIP: add arcyd fetch command
fixup! WIP: add arcyd fetch command
Arcyd: refactor passing of repo paths

Pass a straight-forward list of config file paths through to
abdi_processrepos, instead of faking command-line arguments and then
decoding them again.

Test Plan:
$ ./precommit.sh
$ ./testbed/arcyd/acceptance_tests.sh

check repos are loaded in dashboard with
$ ./testbed/arcyd/loop_test.sh