Bad import in flash_cache/jinja2ext.py

[JAdata]

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Expected Behavior

There is an "old type" import statement in flask_cache/jinja2ext.py

import flask_cache.jinja2ext

Actual Behavior

jinja2ext.py does "from flask.ext.cache import make_template_fragment_key" which is referring to
an old module structure - flask.ext.cache has moved to flask_cache, hasn't it?

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/jensand/ve_unpin/local/lib/python2.7/site-packages/flask_cache/jinja2ext.py", line 33, in <module>
    from flask.ext.cache import make_template_fragment_key
ImportError: No module named ext.cache

Environment

• Python version: 2.7.12
• Flask version: 1.0.2
• Flask-Cache: 0.13.1
• Werkzeug version: 0.14.1

[RonnyPfannschmidt]

thadeusb/flask-cache#156

please report to the correct projects