fix clipboard null crash

OpenPGP-Keychain/src/org/sufficientlysecure/keychain/compatibility/ClipboardReflection.java

@@ -50,7 +50,7 @@ public class ClipboardReflection {
                 methodNewPlainText.invoke(clipboard, clip);
             }
         } catch (Exception e) {
-            Log.e("ProjectsException", "There was and error copying the text to the clipboard: "
+            Log.e("ProjectsException", "There was an error copying the text to the clipboard: "
                     + e.getMessage());
         }
     }
@@ -89,7 +89,7 @@ public class ClipboardReflection {
                 return null;
             }
         } catch (Exception e) {
-            Log.e("ProjectsException", "There was and error getting the text from the clipboard: "
+            Log.e("ProjectsException", "There was an error getting the text from the clipboard: "
                     + e.getMessage());
 
             return null;

OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ImportKeysClipboardFragment.java

@@ -59,8 +59,10 @@ public class ImportKeysClipboardFragment extends Fragment {
             @Override
             public void onClick(View v) {
                 CharSequence clipboardText = ClipboardReflection.getClipboardText(getActivity());
-
-                mImportActivity.loadCallback(clipboardText.toString().getBytes(), null);
+                String sendText = "";
+                if (clipboardText != null)
+                    sendText = clipboardText.toString();
+                mImportActivity.loadCallback(sendText.getBytes(), null);
             }
         });