stubbed out the add_user tool
stubbed out the add_user tool
added a secure.py.example file, modified gitignore to allow it
Merge branch 'feature/add_user_tool' into develop

* feature/add_user_tool:
  added a secure.py.example file, modified gitignore to allow it
  stubbed out the add_user tool
fixed github url
added the LTI middleware back in; it does need to be present in order for the LTI request to be processed correctly
temporarily switch the “secure” url to be http so that it works in development.
Merge branch 'feature/add_user_tool' into develop

* feature/add_user_tool:
  temporarily switch the “secure” url to be http so that it works in development.
  added the LTI middleware back in; it does need to be present in order for the LTI request to be processed correctly
  fixed github url