test: TestCupt: setup: entries of 'packages2' are hashes, not arrays
test: manage: worker: packages: downloads: uris: normal: added
test: TestCupt: generate_environment: support for 'debdelta_conf' option
test: manage: worker: packages: downloads: uris: debdelta: added
lib: internal: debdeltahelper: constructor: use debdelta sources file path as relative to 'dir' option, not as absolute path
test: TestCupt: clean the environment before creating a new one
test: TestCupt: generate_environment: support for 'debpatch' option
test: manage: worker: packages: downloads: uris: debdelta: added a test regarding presence of 'debpatch'
lib: internal: debdeltahelper: constructor: use debpatch file path as relative to 'dir' option, not as absolute path