rename clusterdir to more descriptive baseapp

since the 'clusterdir' part is now in the base newapplication, and not cluster-specific.

IPython/parallel/apps/ipclusterapp.py

@@ -31,7 +31,7 b' from IPython.core.newapplication import BaseIPythonApplication, ProfileDir'
 from IPython.utils.importstring import import_item
 from IPython.utils.traitlets import Int, Unicode, Bool, CFloat, Dict, List
 
-from IPython.parallel.apps.clusterdir import (
+from IPython.parallel.apps.baseapp import (
     BaseParallelApplication,
     PIDFileError,
     base_flags, base_aliases

IPython/parallel/apps/ipcontrollerapp.py

@@ -33,7 +33,7 b' from zmq.utils import jsonapi as json'
 from IPython.config.loader import Config
 from IPython.core.newapplication import ProfileDir
 
-from IPython.parallel.apps.clusterdir import (
+from IPython.parallel.apps.baseapp import (
     BaseParallelApplication,
     base_flags
 )

IPython/parallel/apps/ipengineapp.py

@@ -23,9 +23,7 b' import zmq'
 from zmq.eventloop import ioloop
 
 from IPython.core.newapplication import ProfileDir
-from IPython.parallel.apps.clusterdir import (
-    BaseParallelApplication,
-)
+from IPython.parallel.apps.baseapp import BaseParallelApplication
 from IPython.zmq.log import EnginePUBHandler
 
 from IPython.config.configurable import Configurable

IPython/parallel/apps/iploggerapp.py

@@ -23,7 +23,7 b' import zmq'
 from IPython.core.newapplication import ProfileDir
 from IPython.utils.traitlets import Bool, Dict, Unicode
 
-from IPython.parallel.apps.clusterdir import (
+from IPython.parallel.apps.baseapp import (
     BaseParallelApplication,
     base_aliases
 )