Powerschool Readme updated.
Merge branch 'master' of https://github.com/kajigga/canvas-contrib

# By dwk2 (4) and others
# Via K. Developer (3) and others
* 'master' of https://github.com/kajigga/canvas-contrib:
  Minor update for Presenter View: Do not display on urls containing '/external_tools/' (LTI iframe apps) as the JS would be prevented from communicating with the iframe
  Added CSS to hide the original login label automatically
  Updated JS that appears to work. Previous version got borked after the login screen changed.
  Minor change to clarify expected behavior via editing button label
  Create hide_password_change_for_students.js
  Fixed one Presenter View issue: images now scale consistently (and as expected) along with everything else within browser
  Fix Presenter View issue so text now wraps and displays correctly in any sized browser, instead of getting cut off. Resizing browser now dynamically scales viewable text and images.