Adds virtualenv support for python actions.

Also, change working directory for Python actions to allow relative path access to file system.
diff --git a/.gitignore b/.gitignore
index 7f56bf8..76fd0f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -52,4 +52,10 @@
 # .zip files must be explicited whitelisted
 *.zip
 !tests/dat/actions/blackbox.zip
-!tests/dat/actions/zippedaction.zip
+!tests/dat/actions/helloSwift.zip
+!tests/dat/actions/python.zip
+!tests/dat/actions/python2_virtualenv.zip
+!tests/dat/actions/python3_virtualenv.zip
+!tests/dat/actions/python_virtualenv_dir.zip
+!tests/dat/actions/python_virtualenv_name.zip
+!tests/dat/actions/zippedaction.zip
\ No newline at end of file