fix linting problems

src/Calendar.business.js

@@ -44,6 +44,7 @@ Calendar.prototype.buildBusinessInstances = function(wholeDay, input, rangeStart
 
 
 function _buildBusinessInstances(wholeDay, rawDefs, ignoreNoDow, rangeStart, rangeEnd) {
+	var i;
 	var rawDef;
 	var fullRawDef;
 	var eventDef;

src/EventManager.js

@@ -1188,6 +1188,7 @@ Calendar.prototype.buildMutatedEventInstanceGroup = function(eventId, eventMutat
 	var viewRange = this.getView().activeRange;
 	var defs = this.eventDefCollection.getById(eventId);
 	var i;
+	var defCopy;
 	var allInstances = [];
 
 	for (i = 0; i < defs.length; i++) {
@@ -1196,10 +1197,9 @@ Calendar.prototype.buildMutatedEventInstanceGroup = function(eventId, eventMutat
 		if (defCopy instanceof SingleEventDefinition) {
 
 			eventMutation.mutateSingleEventDefinition(defCopy, this); // calendar=this
-			eventInstances = defCopy.buildInstances(viewRange.start, viewRange.end);
 
-			allInstances.push.apply(allInstances,
-				eventInstances
+			allInstances.push.apply(allInstances, // append
+				defCopy.buildInstances(viewRange.start, viewRange.end)
 			);
 		}
 	}

src/common/Grid.events.js

@@ -141,7 +141,6 @@ Grid.mixin({
 	// FOR RENDERING
 	buildBusinessHourRanges: function(wholeDay, businessHours) {
 		var calendar = this.view.calendar;
-		var events;
 		var group;
 
 		if (businessHours == null) {
@@ -707,7 +706,6 @@ Grid.mixin({
 		var calendar = view.calendar;
 		var el = seg.el;
 		var event = seg.event;
-		var eventEnd = calendar.getEventEnd(event);
 		var isDragging;
 		var resizeMutation; // zoned event date properties. falsy if invalid resize
 
@@ -1137,12 +1135,6 @@ function pluckEventDateProps(event) {
 FC.pluckEventDateProps = pluckEventDateProps;
 
 
-// A cmp function for determining which non-inverted "ranges" (see above) happen earlier
-function compareRanges(range1, range2) {
-	return range1.start - range2.start; // earlier ranges go first
-}
-
-
 /* External-Dragging-Element Data
 ----------------------------------------------------------------------------------------------------------------------*/
 

src/models/EventDateMutation.js

@@ -147,4 +147,4 @@ EventDateMutation.createFromDiff = function(profile1, profile2, largeUnit) {
 	mutation.endDelta = endDelta;
 
 	return mutation;
-}
+};