Updated Default Fallback URL to https

Resolves #179

Due to a pypi API change (reasoning
[here](https://mail.python.org/pipermail/distutils-sig/2017-October/031712.html),
thanks to @natefoo for the link), the redirect links that we were
generating for distributions not present in the package index were
failing with `403` errors.

@ankostis, I have not had time to look into why the standalone tests are
failing. Perhaps we should just ignore them in order to get a new
version out once this is merged to master?

.gitignore

@@ -34,6 +34,12 @@ __pycache__/
 /parts/
 /.cache/
 /.settings/
+.mypy_cache/
 
 # IDE stuff
 .idea/
+
+# Venvs
+.venv/
+venv/
+

README.rst

@@ -117,7 +117,7 @@ For legacy python versions, use ``pypiserver-1.1.x`` series.
 
       --fallback-url FALLBACK_URL
         for packages not found in the local index, this URL will be used to
-        redirect to (default: http://pypi.python.org/simple)
+        redirect to (default: https://pypi.python.org/simple)
 
       --server METHOD
         use METHOD to run the server. Valid values include paste,
@@ -413,10 +413,10 @@ looks like::
     no releases found on pypi for PyXML, Pymacs, mercurial, setuptools
 
     # update raven from 1.4.3 to 1.4.4
-    pip -q install --no-deps  --extra-index-url http://pypi.python.org/simple -d /home/ralf/packages/mirror raven==1.4.4
+    pip -q install --no-deps  --extra-index-url https://pypi.python.org/simple -d /home/ralf/packages/mirror raven==1.4.4
 
     # update greenlet from 0.3.3 to 0.3.4
-    pip -q install --no-deps  --extra-index-url http://pypi.python.org/simple -d /home/ralf/packages/mirror greenlet==0.3.4
+    pip -q install --no-deps  --extra-index-url https://pypi.python.org/simple -d /home/ralf/packages/mirror greenlet==0.3.4
 
 It first prints for each package a single character after checking the
 available versions on pypi. A dot(`.`) means the package is up-to-date, ``'u'``
@@ -811,7 +811,7 @@ See the ``LICENSE.txt`` file.
 
 
 .. _bottle: http://bottlepy.org
-.. _PyPI: http://pypi.python.org
+.. _PyPI: https://pypi.python.org
 .. _twine: https://pypi.python.org/pypi/twine
 .. _pypi-uploader: https://pypi.python.org/pypi/pypi-uploader
 .. _python-pam: https://pypi.python.org/pypi/python-pam/

pypiserver/__main__.py

@@ -76,7 +76,7 @@ def usage():
 
     --fallback-url FALLBACK_URL
       for packages not found in the local index, this URL will be used to
-      redirect to (default: http://pypi.python.org/simple)
+      redirect to (default: https://pypi.python.org/simple)
 
     --server METHOD
       use METHOD to run the server. Valid values include paste,

pypiserver/welcome.html

@@ -16,5 +16,5 @@ easy_install -i {{URL}}simple/ PACKAGE
 or via the <a href="{{SIMPLE}}">simple</a> index.</p>
 
 <p>This instance is running version {{VERSION}} of the
-  <a href="http://pypi.python.org/pypi/pypiserver">pypiserver</a> software.</p>
+  <a href="https://pypi.python.org/pypi/pypiserver">pypiserver</a> software.</p>
 </body></html>

tests/test_app.py

@@ -313,7 +313,7 @@ def test_root_no_relative_paths(testpriv):
     resp = testpriv.get("/priv/")
     hrefs = [x["href"] for x in resp.html("a")]
     assert hrefs == ['/priv/packages/', '/priv/simple/',
-                     'http://pypi.python.org/pypi/pypiserver']
+                     'https://pypi.python.org/pypi/pypiserver']
 
 
 def test_simple_index_list_no_duplicates(root, testapp):