Update login page to support multiple roles
Merge branch 'development' of https://github.com/alexyuktanon/Peer-Review-Grading-System into development

# By kartiksaxena
# Via kartiksaxena
* 'development' of https://github.com/alexyuktanon/Peer-Review-Grading-System:
  Adding Anakin Skywalker, and some small changes