Fix failing tests after jQuery upgrade

lms/static/coffee/spec/calculator_spec.coffee

@@ -12,8 +12,8 @@ describe 'Calculator', ->
 
     it 'bind the help button', ->
       # These events are bind by $.hover()
-      expect($('div.help-wrapper a')).toHandleWith 'mouseenter', @calculator.helpToggle
-      expect($('div.help-wrapper a')).toHandleWith 'mouseleave', @calculator.helpToggle
+      expect($('div.help-wrapper a')).toHandleWith 'mouseover', @calculator.helpToggle
+      expect($('div.help-wrapper a')).toHandleWith 'mouseout', @calculator.helpToggle
 
     it 'prevent default behavior on help button', ->
       $('div.help-wrapper a').click (e) ->

lms/static/coffee/spec/logger_spec.coffee

@@ -25,7 +25,7 @@ describe 'Logger', ->
 
     it 'send a request to log event', ->
       spyOn($, 'ajax')
-      $(window).trigger('onunload')
+      window.onunload()
       expect($.ajax).toHaveBeenCalledWith
         url: "#{Courseware.prefix}/event",
         data: