Trying to fix tox.ini and appveyor.yml to get automated Windows tests to work again

Author: tleonhardt

.appveyor.yml

@@ -1,7 +1,7 @@
 install:
-  - python -m pip install tox pyreadline
+  - python -m pip install tox
 
 build: off
 
 test_script:
-  - python -m tox -e py27,py35,py36-win
+  - python -m tox -e py27-win,py35-win,py36-win

tox.ini

@@ -24,6 +24,22 @@ commands =
   py.test {posargs: -n 2} --cov=cmd2 --cov-report=term-missing
   codecov
 
+[testenv:py27-win]
+deps =
+  codecov
+  mock
+  pyparsing
+  pyperclip
+  pyreadline
+  pytest
+  pytest-cov
+  pytest-xdist
+  six
+  subprocess32
+commands =
+  py.test {posargs: -n 2} --cov=cmd2 --cov-report=term-missing
+  codecov
+
 [testenv:py33]
 deps =
   mock
@@ -54,6 +70,17 @@ deps =
   six
 commands = py.test -v -n2
 
+[testenv:py35-win]
+deps =
+  mock
+  pyparsing
+  pyperclip
+  pyreadline
+  pytest
+  pytest-xdist
+  six
+commands = py.test -v -n2
+
 [testenv:py36]
 deps =
   codecov
@@ -73,6 +100,7 @@ deps =
   mock
   pyparsing
   pyperclip
+  pyreadline
   pytest
   pytest-xdist
   six