Merge pull request #9 from rudispr/force_use_of_old_yaml_hash_in_lock…

…_file

when reading the lock file both old and new hashes are supported, but…

Merge pull request #8 from rudispr/update_zwik_client_to_handle_obsol…

…ete_and_unsafe_packages

Update zwik client to handle obsolete and unsafe packages

Merge pull request #4 from daniel88ferreira/fix-multiple-packages-error

Fix preference for packages from default channels

Initial commit