Added support for Python 2.7

Author: nikhilmitrax

example/manage.py

@@ -1,4 +1,4 @@
-from example.views import app
+from views import app
 from flask_apidoc.commands import GenerateApiDoc
 from flask_script import Manager
 

flask_apidoc/apidoc.py

@@ -16,7 +16,7 @@
 import mimetypes
 
 from flask import request
-from functools import lru_cache
+from functools32 import lru_cache
 from os.path import join, getmtime, getsize
 from werkzeug.datastructures import Headers
 

flask_apidoc/commands.py

@@ -30,7 +30,7 @@ class GenerateApiDoc(Command):
     """
 
     def __init__(self, input_path=None, output_path=None, template_path=None):
-        super().__init__()
+        super(Command, self).__init__()
         self.input_path = input_path
         self.output_path = output_path or 'static/docs'
         self.template_path = template_path