Implement alarm shortcut (fix #244)

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

@@ -4,6 +4,7 @@
   <string name="app_logo">Traccar</string>
   <string name="shortcut_start">Traccar - Start</string>
   <string name="shortcut_stop">Traccar - Stop</string>
+  <string name="shortcut_sos">Traccar - SOS</string>
   <string name="settings_id_title">Device identifier</string>
   <string name="settings_address_title">Server address</string>
   <string name="settings_address_summary">Domain name or IP address</string>
@@ -37,6 +38,7 @@
   <string name="about_web">For more information visit\nwww.traccar.org/client</string>
   <string name="status_service_create">Service created</string>
   <string name="status_service_destroy">Service destroyed</string>
+  <string name="status_send_success">Send successfully</string>
   <string name="status_send_fail">Send failed</string>
   <string name="status_location_update">Location update</string>
   <string name="status_connectivity_change">Connectivity change</string>