Implement application shortcuts (fix #161)

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

@@ -6,9 +6,14 @@
         android:title="@string/menu_status"
         android:showAsAction="always" />
 
+    <item
+        android:id="@+id/shortcuts"
+        android:title="@string/menu_shortcuts"
+        android:showAsAction="never" />
+
     <item
         android:id="@+id/about"
         android:title="@string/menu_about"
-        android:showAsAction="ifRoom" />
+        android:showAsAction="never" />
 
 </menu>

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

@@ -3,6 +3,8 @@
 
     <string name="app_name">Traccar Client</string>
     <string name="app_logo">Traccar</string>
+    <string name="shortcut_start">Traccar - Start</string>
+    <string name="shortcut_stop">Traccar - Stop</string>
 
     <string name="settings_id_title">Device identifier</string>
     <string name="settings_address_title">Server address</string>
@@ -28,6 +30,7 @@
 
     <string name="menu_status">Status</string>
     <string name="menu_about">About</string>
+    <string name="menu_shortcuts">Add shortcuts</string>
     <string name="menu_clear">Clear</string>
     
     <string name="about_description">Real time GPS tracker for Android devices. Compatible with Traccar Server and other tracking systems.</string>