Add AudioToolbox as framework in plugin.xml. Move import to header-file

plugin.xml

@@ -60,7 +60,7 @@
                 <param name="ios-package" value="CDVBackgroundGeoLocation"/>
             </feature>
         </config-file>
-
+        <framework src="AudioToolbox.framework" weak="true" />
         <source-file src="src/ios/CDVBackgroundGeoLocation.m" />
         <header-file src="src/ios/CDVBackgroundGeoLocation.h" />
      </platform>          

src/ios/CDVBackgroundGeoLocation.h

@@ -6,6 +6,7 @@
 
 #import <Cordova/CDVPlugin.h>
 #import "CDVLocation.h"
+#import <AudioToolbox/AudioToolbox.h>
 
 @interface CDVBackgroundGeoLocation : CDVPlugin <CLLocationManagerDelegate>
 - (void) configure:(CDVInvokedUrlCommand*)command;

src/ios/CDVBackgroundGeoLocation.m

@@ -6,7 +6,6 @@
 #import "CDVLocation.h"
 #import "CDVBackgroundGeoLocation.h"
 #import <Cordova/CDVJSON.h>
-#import <AudioToolbox/AudioToolbox.h>
 
 // Debug sounds for bg-geolocation life-cycle events.
 // http://iphonedevwiki.net/index.php/AudioServices