Merge pull request #45 from mapbox/1ec5-contacts-osx

Fix Contacts framework loading crash on OS X

Author: 1ec5

MapboxGeocoder/MapboxGeocoder.h

@@ -1,5 +1,6 @@
 #import <Foundation/Foundation.h>
 #import <CoreLocation/CoreLocation.h>
+#import <Contacts/Contacts.h>
 
 FOUNDATION_EXPORT double MapboxGeocoderVersionNumber;