Fix html editor buttons
Add superscript and subscript
Enable iframes for youtube embed
Add basic insert youtube video function
Improve youtube video uploader
Allow youtube video to display on forum posts
Fix #121 : Rewrite gen_fake_data after migrating to schema
Change elif to else
do not show student name when survey is anonymous
fixed achievement-icon being too big - fixes #232
fixed spacing for each name tag (ocd-triggered)
Merge pull request #234 from jsyeo/jsyeo-fix-fake-data

Fix fake data generator
Merge pull request #236 from wangqiang1208/bugfixing/survey-anonymous-summary

do not show student name when survey is anonymous
s/answer/content
let set_hint return the test cases passed status
Workaround Safari XSS measures
Merge pull request #238 from weiqingtoh/bug/achivement-alignment

Fixed styling issues in statistics tab - Image size & name tags
Merge pull request #240 from jsyeo/jsyeo-fix-stats

s/answer/content
Merge pull request #230 from kxmbrian/wysihtml

Fix and add functionality to html editor
Merge pull request #239 from wangqiang1208/bugfixing/survey-summary-answer-order

Use a checkbox to manually specify answer orders in survey summary