Fix infinite, recursive init call for subclass

Fix infinite, recursive init call if a MMDrawerController subclass implements -init

Author: ersjoh

MMDrawerController/MMDrawerController.m

@@ -162,7 +162,7 @@ - (id)initWithCoder:(NSCoder *)aDecoder{
 
 -(instancetype)initWithCenterViewController:(UIViewController *)centerViewController leftDrawerViewController:(UIViewController *)leftDrawerViewController rightDrawerViewController:(UIViewController *)rightDrawerViewController{
     NSParameterAssert(centerViewController);
-    self = [self init];
+    self = [super init];
     if(self){
         [self setCenterViewController:centerViewController];
         [self setLeftDrawerViewController:leftDrawerViewController];