New setting: Display message if PMS goes offline

- Fixes #92, finally

resources/language/English/strings.xml

@@ -20,6 +20,8 @@
     <string id="30022">Advanced</string>
     <string id="30024">Username</string><!-- Verified -->
 
+    <string id="30025">Display message if PMS goes offline</string>
+    
     <string id="30030">Port Number</string><!-- Verified -->
     <string id="30031">I own this Plex Media Server</string>
     <string id="30036">Number of recent Movies to show:</string>    

resources/language/German/strings.xml

@@ -43,7 +43,7 @@
 
     <string id="30022">Erweitert</string>
     <string id="30024">Benutzername:</string>
-    <string id="30025">Passwort:</string>
+    <string id="30025">Nachricht anzeigen falls PMS offline</string>
     <string id="30026">Benutze 'SIMPLEJSON' anstelle von 'JSON'</string>
 
     <string id="30030">Portnummer:</string>

resources/lib/initialsetup.py

@@ -243,6 +243,7 @@ class InitialSetup():
                              'machineIdentifier of %s and name %s is '
                              'offline' % (self.serverid, name))
                     # "PMS xyz offline"
+                    if settings('show_pms_offline') == 'true':
                         self.dialog.notification(addonName,
                                                  '%s %s'
                                                  % (name, lang(39213)),

resources/settings.xml

@@ -10,6 +10,7 @@
 		<setting id="https" label="30243" type="bool" default="false" />
 		<setting id="sslverify" subsetting="true" label="30500" type="bool" default="false" visible="eq(-1,true)" />
 		<setting id="sslcert" subsetting="true" label="30501" type="file" default="None" visible="eq(-2,true)" />
+		<setting id="show_pms_offline" label="30025" type="bool" default="true" /><!-- Display message if PMS goes offline -->
 
 		<setting type="sep" text=""/>