Merge branch 'develop' of github.com:sampotts/plyr into develop

# Conflicts:
#	package.json
#	yarn.lock

src/js/captions.js

@@ -151,7 +151,11 @@ const captions = {
         toggleClass(this.elements.container, this.config.classNames.captions.enabled, !is.empty(tracks));
 
         // Update available languages in list
-        if ((this.config.controls || []).includes('settings') && this.config.settings.includes('captions')) {
+        if (
+            is.array(this.config.controls) &&
+            this.config.controls.includes('settings') &&
+            this.config.settings.includes('captions')
+        ) {
             controls.setCaptionsMenu.call(this);
         }
     },