Ignore self as plugin while self test + minor cleanup

pytest.ini

@@ -1,2 +1,3 @@
 [pytest]
 norecursedirs = .* pytest_gui_status testcases
+addopts = -p no:gui_status

pytest_gui_status/status_gui/todo.txt

@@ -1,7 +1,6 @@
 Todo
 ------
 
-** Add py.test -p no:gui_status while test**
 1. Allow config for template
 1.1. Test - env config for redis
 2. Add well-explained readme

tests/test_plugin/test_plugin.py

@@ -114,10 +114,9 @@ def test_intermediate_1(tmpdir):
              "REDIS_ARGS": "--test_arg = test_val",
              "PYTEST_STATUS_PORT": "1234"})
 def test_env_redis_1():
-    # REDIS_PATH
-    # REDIS_ARGS
-    # REDIS_PORT
-    # del status_plugin
+    '''
+    Test that redis config via env variables - REDIS_PATH, REDIS_ARGS, PYTEST_STATUS_PORT work as intended.
+    '''
 
     import pytest_gui_status.status_plugin.plugin
     reload(pytest_gui_status.status_plugin.plugin)