message: added missing  breaking
diff: Requires `libfranka` >= 0.7.0
  * `franka_hw`, `franka_combinable_hw`, `franka_combined_hw`: Added service interface to disconnect and reconnect when no controller is active. This allows mixing FCI- and DESK-based application without stopping the according hardware nodes.
  - * `franka_hw`, `franka_combinable_hw` method control() now is non-const to allow locking a mutex member variable.
  + * **BREAKING** `franka_hw`, `franka_combinable_hw` method control() now is non-const to allow locking a mutex member variable.
  ## 0.7.1 - 2020-10-22
  