Refactor: Python packages should be installed as modules, and not use source files (#149)

* Python packages should be installed as modules, and not use source files

* Use child_process spawn to call command and return data

* Consistent error rejection & resolve around spawn calls.

* Updated README to remove submodule ref & added how to install pip pcks.

* Resovled linting issue

* Removed python-shell package

* Disable stray functionality, unused & has dep to python-shell

* Uncommented/disabled python-shell dependency in strayRepository.

configurations/development.json.example

@@ -1,6 +1,6 @@
 {
   "database": {
-    "host": "../shows.db"
+    "host": "./shows.db"
   },
   "redis": {
     "host": "localhost",