Updates README.
Merge branch 'refactor_experiments'

* refactor_experiments:
  [Checkpoint]
  [save] Save responses to database.
  [save] Parse answers sent to controller.
  [save] Pass input to controller.
  [save] Get qid of input objects.
  [save] Pass qid from database.
  [save] Collect data from view (no ajax call yet).
  [all] Save width and height of objects. Save questions before inputs first.
  [builder] Code cleanup.
  [respondents] Refactor respondents' view.
  [builder] Cleanup code.
  [builder] Fix php tags.
  [all] Recreate objects in builder.
  [all] Save objects in database.
  [all] Pass data as array of objects.
  [questions] Pass data as array of objects.
Save button fix
Refactors home [WIP].
Configuring correct routes for admin.
Removes unnecessary assignment of variables in admin.
Initiates all the final methods for admin controller.
Adds administrators page for admin.
Implements creating admin in admin.
Completes the create and destroy functions of admin.
Implements admin view feature.
Refactors faculty signup for admin.
Refactors adding and deleting of laboratory.
Implements delete faculty function and modifies test.
Fix sign up bug in faculty and graduate.
Refactors graduates page in admin. Implement delete graduate.
Implements experiments module for admin.
Refactors signin and assignment of roles.
Prioritizes faculty role over labhead.
Sets SITE_NAME as a constant.