Squashed 'bundle/whiteboard/' changes from 5121d03..f289142

f289142 updated mini file
d3a5e7a solved z-index problem of all moodle themes

git-subtree-dir: bundle/whiteboard
git-subtree-split: f2891425529cdfffd38756eb6cb67e75e45eac83
Merge commit '39d2419b60f137c0ceee180149c34919cad51e46'