Updated consolidated tox.ini files and made them workable on windows.

Some extra environment variables are necessary on windows to get the CLI
to pass the integration tests when using 'tox'. Specifically, the HOME*
environment variables are needed to allow python's 'expanduser()'
function to succeed when resolving the '~' path for the default
DCOS_DIR. Additionally, the OPENSSL_CONF variable is need to allow SSL
connections to be made properly using the windows OpenSSL library.
Without these additional variables things seem to die in unexpected
ways.

cli/tox.ini

@@ -15,7 +15,16 @@ deps =
   teamcity-messages
   -e..
 
+# We currently include '*' as a catch all even though we also whitelist
+# specific # environment variables we know we care about. We should audit this in
+# the near future.
 passenv =
+  *
+  HOME
+  USERPROFILE
+  HOMEPATH
+  HOMEDRIVE
+  OPENSSL_CONF
   DCOS_*
   CI_FLAGS
   CLI_TEST_SSH_KEY_PATH

tox.ini

@@ -13,7 +13,16 @@ deps =
   pytest-cov
   teamcity-messages
 
+# We currently include '*' as a catch all even though we also whitelist
+# specific # environment variables we know we care about. We should audit this in
+# the near future.
 passenv =
+  *
+  HOME
+  USERPROFILE
+  HOMEPATH
+  HOMEDRIVE
+  OPENSSL_CONF
   DCOS_*
   CI_FLAGS
   CLI_TEST_SSH_KEY_PATH

tox.win.ini

@@ -1,29 +0,0 @@
-[tox]
-envlist = py35-unit
-toxworkdir={env:TOXWORKDIR:.tox}
-
-[testenv]
-setenv =
-  DCOS_CONFIG = {env:DCOS_CONFIG}
-
-passenv =
-  TEAMCITY_VERSION
-
-deps =
-  pytest
-  pytest-cov
-  pypiwin32
-  teamcity-messages
-
-[testenv:syntax]
-deps =
-  flake8
-  flake8-import-order==0.9.2
-  pep8-naming
-
-commands =
-  flake8 --verbose {env:CI_FLAGS:} dcos tests setup.py
-
-[testenv:py35-unit]
-commands =
-  py.test -vv {env:CI_FLAGS:} --cov {envsitepackagesdir}/dcos tests