Congruentie voorwaarden
Use all other fixes in https://github.com/Khan/khan-exercises/commit/83ab06dc30c3c2c21a36cf6b25d175f2ee89a3be
Fixes BH-390
Fixes BH-341
Merge branch 'translation' of https://github.com/PerceptumNL/KhanLatest into translation
Revert "Logo perceptum in footer"

This reverts commit 802329735ef342d33d49ccada8fb57c7a3d72f9a.
Fixes BH-388
Fixes BH-390
Fixes BH-396
Fixes BH-399
Fixes BH-395
Fixes BH-395 ,spelling correction
Fixes BH-398
Fixes BH-385
Fixes T22, 'The 5 badge mistake'
Fixes BH-403
little change (not on BH)
Fixes BH-404
Add symbolic link for 'search' module
Merge branch 'translation' of https://github.com/PerceptumNL/KhanLatest into translation