bugherd/#242 close, size of energy points buttons
Search results plurals. Closes T36
Updated line_graph_intuition.html with Khan US exercise
Add exercises/geometry_proofs* from Khan US
Remove line_graph_intuition.lang.js
Merge branch 'translation' into develop
Merge branch 'exercises' into develop
Fix class report colors
Merge commit 'd289659a282e73ff23bb88d32bebf844494fd6a7' into frontend
English hints translated (vierhoeken)
Merge branch 'translation' of https://github.com/PerceptumNL/KhanLatest into translation
soorten vierhoeken translated
button translated
no message
'hidden' in class profile translated
focus graph 'Other' translated
error fixed (greatest common divisor)
space fixed
translation badges in exercise (reading pictograms)
Wortelvergelijkingen vertaling