Rename hardware_device into lofar_device

Closes L2SS-448

tangostationcontrol/tangostationcontrol/devices/abstract_device.py

@@ -20,7 +20,7 @@ logger = logging.getLogger()
 
 
 class AbstractDeviceMetas(DeviceMeta, ABCMeta):
-    """Collects meta classes to allow hardware_device to be both a Device and an ABC. """
+    """Collects meta classes to allow lofar_device to be both a Device and an ABC. """
 
     def __new__(mcs, name, bases, namespace, **kwargs):
         cls = ABCMeta.__new__(mcs, name, bases, namespace, **kwargs)