added proxy support, silent right now

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/CertifyOperation.java

@@ -46,6 +46,7 @@ import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.Passphrase;
 
+import java.net.Proxy;
 import java.util.ArrayList;
 import java.util.concurrent.atomic.AtomicBoolean;
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportOperation.java

@@ -562,4 +562,4 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
         }
     }
 
-}
+}