bugfix: fixed teachers page loading in firefox
Merge pull request #5 from mdlsr/features/10872811196871

Features/10872811196871
Merge pull request #6 from mdlsr/features/10872811196871

#10872811196871 timetable editor is made stretch
#18193144009304 alldirectives are moved to "directives" folder
Merge pull request #7 from mdlsr/features/18193144009304

#18193144009304 alldirectives are moved to "directives" folder
#17591616226614 added limits to lists : faculties, disciplines, teachers
(cherry picked from commit b28839d)
list teachers: fixed error if teachers ids parameter  is empty
#10872811196871 introduced doule scrollgrid widget, timetable madeto use it to renderi