Pep8 check most files

I left some errors on puppetboard/forms.py because I'm not
sure how to fix them.

passenger_wsgi.py

@@ -17,4 +17,3 @@ try:
     from puppetboard.app import app as application
 except Exception, inst:
     logging.exception("Error: %s", str(type(inst)))
-

puppetboard/forms.py

@@ -4,6 +4,7 @@ from __future__ import absolute_import
 from flask.ext.wtf import Form
 from wtforms import RadioField, TextAreaField, validators
 
+
 class QueryForm(Form):
     """The form used to allow freeform queries to be executed against
     PuppetDB."""
@@ -17,4 +18,3 @@ class QueryForm(Form):
         ('reports', 'Reports'),
         ('events', 'Events'),
         ])
-

puppetboard/utils.py

@@ -6,6 +6,7 @@ from pypuppetdb.errors import EmptyResponseError
 
 from flask import abort
 
+
 def get_or_abort(func, *args, **kwargs):
     """Execute the function with its arguments and handle the possible
     errors that might occur.