edx/edx-platform — pull request #4945 by dmitchell (2014-08-22 19:07:29+00:00)
Title: Change most uses of html_id to just use block_id

Discussion forum and lti still use html id which may or may not work
for non-deprecated keys.
LMS-11236

Replaces https://github.com/edx/edx-platform/pull/4917