Minor tasks refactor

tasks.py

@@ -2,13 +2,16 @@
 # -*- coding: utf-8 -*-
 """Invoke tasks."""
 import os
+import json
 import shutil
 
 from invoke import task, run
 
 HERE = os.path.abspath(os.path.dirname(__file__))
+with open(os.path.join(HERE, 'cookiecutter.json'), 'r') as fp:
+    COOKIECUTTER_SETTINGS = json.load(fp)
 # Match default value of app_name from cookiecutter.json
-COOKIE = os.path.join(HERE, 'myflaskapp')
+COOKIE = os.path.join(HERE, COOKIECUTTER_SETTINGS['app_name'])
 REQUIREMENTS = os.path.join(COOKIE, 'requirements', 'dev.txt')