Workaround for LGE-related NPEs

See: https://code.google.com/p/android/issues/detail?id=78154

Fixes #2424
Closes #2428

// FREEBIE

src/org/thoughtcrime/securesms/BaseActionBarActivity.java

@@ -0,0 +1,22 @@
+package org.thoughtcrime.securesms;
+
+import android.support.annotation.NonNull;
+import android.support.v7.app.ActionBarActivity;
+import android.view.KeyEvent;
+
+
+public abstract class BaseActionBarActivity extends ActionBarActivity {
+  @Override
+  public boolean onKeyDown(int keyCode, KeyEvent event) {
+    return BaseActivity.isKeyCodeWorkaroundRequired(keyCode) || super.onKeyDown(keyCode, event);
+  }
+
+  @Override
+  public boolean onKeyUp(int keyCode, @NonNull KeyEvent event) {
+    if (BaseActivity.isKeyCodeWorkaroundRequired(keyCode)) {
+      openOptionsMenu();
+      return true;
+    }
+    return super.onKeyUp(keyCode, event);
+  }
+}