#11 Added UI for questions
#11 Changed display 'valid selection options' in question UI
#10: Relations are now deleted properly
#11 Fixed bug with adding 'Valid selection options' in Firefox
#10: Changed select style to match bootstrap
#10: Fixed default sorting of jqGrids
#10: Fixed the bug with reloading of grid, improved performance for larger data sets
#12 Refactor methods forming entities from dto in DtoFactoryService
#12 Fixed integration tests
#12 Added check whether 'parentIds' are null and ability get CoursePlan by name
#12 Added DtoFactoryServiceIT
#12 Added 'after method' to CourseImportServiceIT
#10: Added M-Training Admin panel, error log service and view
#11: added fetching CoursePlans witch child collections
#10: Added missing admin panel tabs
#12: Added ability select Quiz for Chapter
#12 Refactor methods in DtoFactoryService
#11: added location logic
#11: fixed Location related tests
#11: removed Schedule concept