Issue #434 resources controller and routes
 Issue #434 resources views
 Issue #434 resources action new
 Issue #434 add top side bar
 Issue #434 action new routes
#447 added add_problems action in contests controller
#447 added initial view for add problems page
#447 view fixes, now name and description show correctly
 Issue #434 models modification
 Issue #434 views modification
 Issue #434 controller modification
#447 added routes
#447 added add action in contests controller
#447 bug fixes, added functionality of adding problems
#447 added documentation and removed unnecessary instance variable
#447 removed unnecessary comment
Issue #434 add more resources action
Issue #434 modify models
Issue #434 add resources js forms
Issue #434 add action route