Add Realm item to ZulipActivity Menu

Author: kunall17

app/src/main/res/menu/options.xml

@@ -9,6 +9,9 @@
         app:actionViewClass="android.support.v7.widget.SearchView"
         app:showAsAction="ifRoom" />
 
+    <item
+        android:id="@+id/menu_realm"
+        android:title="@string/realm_title" />
     <item
         android:id="@+id/refresh"
         android:title="@string/refresh" />

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

@@ -51,13 +51,6 @@
     <string name="hint_person">Person</string>
     <string name="hint_subject">Topic</string>
     <string name="hint_stream">Stream</string>
-    <string name="message_sent">Message sent!</string>
-    <string name="message_error">Error sending message</string>
-    <string name="stream_error">Please specify stream.</string>
-    <string name="stream_not_exists">Stream does not exist.</string>
-    <string name="subject_error">Please specify topic.</string>
-    <string name="person_error">Please specify recipient.</string>
-    <string name="no_message_error">No message written.</string>
     <string name="local_server">Dev backend testing server</string>
     <string name="zulip_dev_login">Zulip Dev login</string>
     <string name="admin_none">Administrators (None)</string>
@@ -79,4 +72,12 @@
     <string name="use_https">Use HTTPS</string>
     <string name="use_http">Use HTTP</string>
     <string name="empty_list">Sorry, no messages here.</string>
+    <string name="message_sent">Message sent!</string>
+    <string name="message_error">Error sending message</string>
+    <string name="stream_error">No stream specified.</string>
+    <string name="stream_not_exists">Stream does not exists.</string>
+    <string name="subject_error">No subject specified.</string>
+    <string name="person_error">No person specified.</string>
+    <string name="no_message_error">No message written.</string>
+    <string name="realm_title">Realms</string>
 </resources>