Fix build running test
Fix renderPermutation filter
Fix problem example edit form

Shouldn't be edited in ace editor since it will
simply rendered in a pre element.
Fix private test not showing in edit form

and getting erased when the problem was saved.
Remove private tests in mobile problems
Only show permutation when rebuilding a problem
Color result table rows in green or red
Merge pull request #35 from dinoboff/edit-problem

Various fix to mobile problem edit form