diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
index c28d57627..0afa556cb 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
@@ -33,6 +33,7 @@ import se.emilsjolander.stickylistheaders.ApiLevelTooLowException;
 import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
 
 import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
@@ -276,7 +277,8 @@ public class KeyListPublicFragment extends Fragment implements AdapterView.OnIte
         viewIntent.setData(KeychainContract.KeyRings.buildPublicKeyRingsUri(Long.toString(id)));
         startActivity(viewIntent);
     }
-
+    
+    @TargetApi(11)
     public void encrypt(ActionMode mode, long[] keyRingRowIds) {
         // get master key ids from row ids
         long[] keyRingIds = new long[keyRingRowIds.length];
@@ -298,6 +300,7 @@ public class KeyListPublicFragment extends Fragment implements AdapterView.OnIte
      *
      * @param keyRingRowIds
      */
+    @TargetApi(11)
     public void showDeleteKeyDialog(final ActionMode mode, long[] keyRingRowIds) {
         // Message is received after key is deleted
         Handler returnHandler = new Handler() {
@@ -332,4 +335,4 @@ public class KeyListPublicFragment extends Fragment implements AdapterView.OnIte
         deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog");
     }
 
-}
\ No newline at end of file
+}
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java
index f9d267f27..7bb77b60f 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListSecretFragment.java
@@ -29,6 +29,7 @@ import org.sufficientlysecure.keychain.ui.adapter.KeyListSecretAdapter;
 import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
 
 import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
@@ -209,6 +210,7 @@ public class KeyListSecretFragment extends ListFragment implements
      *
      * @param keyRingRowIds
      */
+    @TargetApi(11)
     public void showDeleteKeyDialog(final ActionMode mode, long[] keyRingRowIds) {
         // Message is received after key is deleted
         Handler returnHandler = new Handler() {
diff --git a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java
index 61fe13ffb..b94c42e90 100644
--- a/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java
+++ b/OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java
@@ -32,6 +32,7 @@ import java.util.List;
 import java.util.TimeZone;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.Locale;
 
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
@@ -172,11 +173,11 @@ public class HkpKeyServer extends KeyServer {
             if (e.getCode() == 404) {
                 return results;
             } else {
-                if (e.getData().toLowerCase().contains("no keys found")) {
+                if (e.getData().toLowerCase(Locale.US).contains("no keys found")) {
                     return results;
-                } else if (e.getData().toLowerCase().contains("too many")) {
+                } else if (e.getData().toLowerCase(Locale.US).contains("too many")) {
                     throw new TooManyResponses();
-                } else if (e.getData().toLowerCase().contains("insufficient")) {
+                } else if (e.getData().toLowerCase(Locale.US).contains("insufficient")) {
                     throw new InsufficientQuery();
                 }
             }
diff --git a/OpenPGP-Keychain/src/main/res/layout/api_app_register_activity.xml b/OpenPGP-Keychain/src/main/res/layout/api_app_register_activity.xml
index c60416494..aa9d59004 100644
--- a/OpenPGP-Keychain/src/main/res/layout/api_app_register_activity.xml
+++ b/OpenPGP-Keychain/src/main/res/layout/api_app_register_activity.xml
@@ -6,7 +6,7 @@
 
     <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="wrap_content"
         android:padding="16dp"
         android:orientation="vertical">
 
@@ -26,4 +26,4 @@
             tools:layout="@layout/api_app_settings_fragment" />
 
     </LinearLayout>
-</ScrollView>
\ No newline at end of file
+</ScrollView>
diff --git a/OpenPGP-Keychain/src/main/res/layout/api_app_settings_activity.xml b/OpenPGP-Keychain/src/main/res/layout/api_app_settings_activity.xml
index d4fb5103a..d83c8e87d 100644
--- a/OpenPGP-Keychain/src/main/res/layout/api_app_settings_activity.xml
+++ b/OpenPGP-Keychain/src/main/res/layout/api_app_settings_activity.xml
@@ -6,7 +6,7 @@
 
     <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="wrap_content"
         android:padding="16dp"
         android:orientation="vertical">
 
@@ -18,4 +18,4 @@
             tools:layout="@layout/api_app_settings_fragment" />
 
     </LinearLayout>
-</ScrollView>
\ No newline at end of file
+</ScrollView>
diff --git a/OpenPGP-Keychain/src/main/res/layout/key_server_preference.xml b/OpenPGP-Keychain/src/main/res/layout/key_server_preference.xml
index 8b99e5d2f..4a09e4240 100644
--- a/OpenPGP-Keychain/src/main/res/layout/key_server_preference.xml
+++ b/OpenPGP-Keychain/src/main/res/layout/key_server_preference.xml
@@ -71,8 +71,8 @@
         <LinearLayout
             android:id="@+id/editors"
             android:layout_width="fill_parent"
-            android:layout_height="fill_parent"
+            android:layout_height="wrap_content"
             android:orientation="vertical" />
     </ScrollView>
 
-</LinearLayout>
\ No newline at end of file
+</LinearLayout>