build log mocking according to real data (from api)
Leave loader in clean state if checksum verification fails
Minor code refactorings

Moved load_yaml to cli, run_steps utility function in steps.
Moved runtime tests to separate package
Reorder requirements by logical groups.
adjust height on resize
repo/repos page
build log mock and style changes
Added checksum command.

Checksum command will resolve JSON pointer and calculate its md5 or sha1 checksum.
test fix
merge