Add the ability to play an MP3 file when finished booting instead of speaking

README.md

@@ -2,7 +2,7 @@
 Skill to determine when Mycroft AI has finished booting up.
 
 ## About 
-With this skill Mycroft will say when the boot up period has finished and is ready to receive commands.
+With this skill Mycroft will say "finished booting" or play a startup sound when the boot up period has finished and is ready to receive commands. 
 
 ## Examples 
 
@@ -12,5 +12,11 @@ zelmon64 (@zelmon64), Wally Fort (@fortwally), JarbasAI (@JarbasAI)
 ## Category
 **Configuration**
 
-## Tags
+You may optionally add a configuration stanza to mycroft.conf to play an mp3 file instead of speaking:
+```
+  "FinishedBootingSkill": {
+    "startup_mp3": "/home/pi/chimes-1948.mp3"
+  }
+```
 
+## Tags

__init__.py

@@ -17,19 +17,30 @@
 
 from mycroft import MycroftSkill
 from mycroft.util.log import LOG
+from mycroft.configuration import ConfigurationManager
+from mycroft.util import play_mp3
 
 class FinishedBootingSkill(MycroftSkill):
 
     # The constructor of the skill, which calls MycroftSkill's constructor
     def __init__(self):
         super(FinishedBootingSkill, self).__init__(name="FinishedBootingSkill")
-    
+
     def initialize(self):
         self.add_event("mycroft.skills.initialized", self.handle_boot_finished)
         LOG.debug('add event handle boot finished')
-
+        config = ConfigurationManager.get()
+        base_conf = config.get('FinishedBootingSkill')
+        if base_conf:
+          self.mp3_file = base_conf.get('startup_mp3', None)
+        else:
+          self.mp3_file = None
+
     def handle_boot_finished(self):
-        self.speak_dialog('finished.booting')
+        if self.mp3_file:
+            play_mp3(self.mp3_file)
+        else:
+            self.speak_dialog('finished.booting')
         LOG.debug('finished booting')
 
 # The "create_skill()" method is used to create an instance of the skill.