update the reponame format string text in help text
update the default reponame format string
add some more checks for format strings in test cases for myrepo.repo
add the special method __repr__ to myrepo.repo.Repo
add missing 's' at the end of template variable in _REPONAME format string
add special methods __repr__ to myrepo.repo.{Server,Dict}
add special method __eq__ to myrepo.repo.{Server,Dict,Repo}
sort out code around myrepo.cli.mk_repos
update and fix bugs in test cases for myrepo.cli