update should be able to change remotes

[bodepd]

Currently, update does not work if the specified remote is different than the current origin (ie: it cannot switch between remotes)

[haf]

Related to #24 - perhaps we could consider hashing the dictionary that is passed to the mod function, as a part of a custom .librarian directory: thereby knowing whether the configuration has changed between runs? A hash of the hash, (haha), would handle this gracefully. File.write('w+', '.librarian/' + module_name) do | io| ; io.write(md5(JSON.toJson(config))) ; end

[bodepd]

I just ran into this again. Getting more motivated to fix it :)

[bodepd]

This should be resolved by #26, but it needs a little more testing.