Remove notification observer and cancel nw_path_monitor

Author: vineetchoudhary

AppBox/ViewController/ABHudViewController/ABHudViewController.m

@@ -111,4 +111,8 @@ -(void)setHudType:(HudType)hudType{
     }
 }
 
+- (void)dealloc {
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
 @end

AppBox/ViewController/DropboxViewController/DropboxViewController.m

@@ -41,6 +41,8 @@ - (void)handleLoggedInNotification:(NSNotification *)notification{
     [self dismissController:self];
 }
 
-
+- (void)dealloc {
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
 
 @end

AppBox/ViewController/HomeViewController/HomeViewController.m

@@ -503,4 +503,12 @@ -(void)prepareForSegue:(NSStoryboardSegue *)segue sender:(id)sender{
     }
 }
 
+- (void)dealloc {
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+    if (_pathMonitor) {
+        nw_path_monitor_cancel(_pathMonitor);
+        _pathMonitor = nil;
+    }
+}
+
 @end