Release v1.4.1

Use existing branch names

Branches on repositories are named with an initial r.

Prior to https://github.com/omniosorg/omni/pull/17 the value of $branch
got set to a contain an r through `uname -v | cut -d- -f2`, resulting in
correct names. The commit in PR-17 changes $branch to instead be all
numerical, which presumably must have been a mistake since that is not
how they actually are named.