pep8 blank lines fixes

flake8 --select W391,E302,E301,E304

autopep8 can't fix W391 even though it claims it can.
Fixed using a simple custom script.

modules/unsee/browser.py

@@ -36,6 +36,7 @@ def to_bytes(s):
     else:
         return s
 
+
 class FileField(object):
     def __init__(self, filename, contents=None, headers=None):
         self.filename = to_bytes(os.path.basename(filename))

modules/unsee/module.py

@@ -74,4 +74,3 @@ class UnseeModule(Module, BasePasteModule):
         d = self.browser.post_image(paste.title, paste.contents.decode('base64'), max_code)
         paste.id = d['id']
         return paste
-