Quick fix to prevent errors on duplicate exercise and video logs in generaterealdata.
Fixing broken link on register device page.
Merge pull request #539 from rtibbles/generate_real_data

Prevent errors in Generate Real Data script
Merged new fix with upstream release
Merge pull request #541 from dylanjbarth/release-0.10

Ok, really fixing it this time
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into coach_reports_hotfix