Fixed fall through inspection comment

lib/timeline/TimeStep.js

@@ -126,7 +126,7 @@ TimeStep.prototype.first = function() {
 TimeStep.prototype.roundToMinor = function() {
   // round to floor
   // IMPORTANT: we have no breaks in this switch! (this is no bug)
-  //noinspection FallthroughInSwitchStatementJS
+  // noinspection FallThroughInSwitchStatementJS
   switch (this.scale) {
     case 'year':
       this.current.setFullYear(this.step * Math.floor(this.current.getFullYear() / this.step));