Merge pull request #36 from fireeye/elazar-changes

Update readme with additional instructions and dependencies.

README

@@ -15,15 +15,18 @@ To install HXTool:
 	- On Windows systems, pip.exe can be found in the "scripts" folder under your Python installation directory.  
 3. After installing the dependencies, run "python hxtool.py" from your operating system's command shell and the server will start listening to tcp port 8080 (HTTPS).  
 	- Alternatively, on Windows, you should be able to double-click on the "hxtool.py" file.  
-4. Access the web user interface via a browser: https://127.0.0.1:8080 (tested with Google Chrome and Mozilla Firefox)  
+4. Access the web user interface via a browser: https://127.0.0.1:8080 (tested with Google Chrome and Mozilla Firefox)
+5. You will need an account on the Endpoint Security (HX) controller that has either the api_admin or api_analyst role.
+6. Don't forget to set the Background Processing credentials under Admin --> HXTool Settings. These credentials are used by the scheduler, and can be the same as what you have logged in with, or a separate set.  
 
 ### Dependencies ###
 Python 3.6 or greater (Python 2.x is deprecated, and while it may still work, it will no longer be supported.)  
 Python Flask library  
 Python Requests library  
 Python Pycryptodome library  
 Python TinyDB library  
-Python Pandas library  
+Python Pandas library
+Optional: Python MongoDB library  
 
 ### Configuration ###
 Configuration for HXTool is held in the "conf.json" file, documentation is in README.CONFIG.