Fix variable name typos.

Author: oleg

samples/LoginWithSocialNetworkSDK/app/src/main/java/com/backendless/examples/login_with_sdk/LoginWithFacebookSDKActivity.java

@@ -32,8 +32,8 @@ public class LoginWithFacebookSDKActivity extends Activity {
 	private CallbackManager callbackManager;
 	private String fbAccessToken = null;
 
-	private boolean isLoginnedInFacebook = false;
-	private boolean isLoginnedInBackendless = false;
+	private boolean isLoggedInFacebook = false;
+	private boolean isLoggedInBackendless = false;
 
 
 	@Override

samples/LoginWithSocialNetworkSDK/app/src/main/java/com/backendless/examples/login_with_sdk/LoginWithGooglePlusSDKActivity.java

@@ -43,8 +43,8 @@ public class LoginWithGooglePlusSDKActivity extends Activity {
 	private GoogleApiClient mGoogleApiClient;
 	private String gpAccessToken = null;
 
-	private boolean isLoginnedInGoogle = false;
-	private boolean isLoginnedInBackendless = false;
+	private boolean isLoggedInGoogle = false;
+	private boolean isLoggedInBackendless = false;
 
 
 	@Override