dnet: fixed spelling
debian: use parallel build
debian: simplify rules
recovery: whitespace
recovery: dc: dc2: use proper direct API
recovery: use lock by default
dnet: use proper error code on empty route table
recovery: dc: dc2: fixed exception on container load

On alpha tests we've got an error:
    TypeError: __init__() got an unexpected keyword argument 'is_sorted'

Bug was introduced in:
    "recovery: renamed collisions with python builtins"

Pointy hat to: me
recovery: cleanup after type removal