Fixed power editing saving

app/src/main/res/layout/activity_power_editor.xml

@@ -6,6 +6,7 @@
     android:orientation="vertical">
 
     <!--TODO: organize the input similarly to the output-->
+    <!--TODO: add "other" element to input further information-->
 
     <android.support.v7.widget.Toolbar
         android:id="@+id/toolbar"

app/src/main/res/values-es/strings.xml

@@ -156,4 +156,5 @@
         <item>Reflejos</item>
         <item>Voluntad</item>
     </string-array>
+    <string name="required">Este campo es obligatorio</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -105,6 +105,7 @@
     <string name="objectiveHint">One creature</string>
     <string name="power_editor">Power Editor</string>
     <string name="save_player">Save player</string>
+    <string name="required">This field is required</string>
 
     <string-array name="freq_array">
         <item>Frequency</item>