lib: Use new style Python classes.

Inherit from object in all Python classes.  This is a "new style"
class.  It's best to always use them.  In Python 3, all classes are
"new style", so this ensures consistent behavior between 2 and 3.

Change-Id: I958baf19a076a6cf3cc57455f05d24182ac1f005
Signed-off-by: Russell Bryant <rbryant@redhat.com>

lib/Connmon.py

@@ -15,7 +15,7 @@ import os
 import logging
 import shutil
 
-class Connmon:
+class Connmon(object):
 
     def __init__(self, config):
         self.logger = logging.getLogger('browbeat.Connmon')

lib/Elastic.py

@@ -20,7 +20,7 @@ import sys
 browbeat_uuid = uuid.uuid4()
 
 
-class Elastic:
+class Elastic(object):
 
     """
     """

lib/Grafana.py

@@ -14,7 +14,7 @@ import logging
 import subprocess
 
 
-class Grafana:
+class Grafana(object):
 
     def __init__(self, config):
         self.logger = logging.getLogger('browbeat.Grafana')

lib/Metadata.py

@@ -15,7 +15,7 @@ import sys
 import os
 
 
-class Metadata:
+class Metadata(object):
 
     def __init__(self):
         pass

lib/Tools.py

@@ -15,7 +15,7 @@ import os
 import subprocess
 
 
-class Tools:
+class Tools(object):
 
     def __init__(self, config=None):
         self.logger = logging.getLogger('browbeat.Tools')

lib/WorkloadBase.py

@@ -16,7 +16,7 @@ import os
 import yaml
 
 
-class WorkloadBase:
+class WorkloadBase(object):
     __metaclass__ = abc.ABCMeta
     logger = logging.getLogger('browbeat.WorkloadBase')
     success = 0