add delete student of course
add exam reference to documents, and fix view exam
create document form exam
add traduction
add individual class
precompile
Merge pull request #178 from PlumLabs/ra/fixErrorCreateFee

Ra/fix error create fee
add Create in materials
add materials controller
Add view for new material
refactorization
Add view for new material
Add main button for library module in header layout.
Add show view for materials
Refactorization
Add material's index
Add edit view for materials
Improve create's view
Add create for Material's Records
Improve Material's Records