support playlist changing, shuffle, and repeat mode control

fgfm.TODO

@@ -1,11 +1,15 @@
 TODO:
   ☐ Spotify integration
-    ✔ !song -- display current song + link @done (18-12-04 11:24)
-    ✔ !playlist -- display current context / album @done (18-12-04 11:24)
-    ✔ !skip -- mods auto-skip @done (18-12-04 11:47)
-    ☐ !volume -- volume adjustment
-    ✔ !pause / !resume @done (18-12-04 11:49)
+    ✔ song -- display current song + link @done (18-12-04 11:24)
+    ✔ playlist -- display current context / album @done (18-12-04 11:24)
+    ✔ skip -- mods auto-skip @done (18-12-04 11:47)
+    ✔ volume -- volume adjustment @done (18-12-04 19:49)
+    ✔ pause / resume @done (18-12-04 11:49)
+    ✔ ability to change the playlist (setplaylist <spotify-uri>) @done (18-12-11 10:52)
+    ✔ shuffle on/off @done (18-12-11 11:22)
+    ✔ repeat mode control @done (18-12-11 11:22)
   ☐ Web interface for viewers to issue commands
+    ☐ Organized room / video list, one-click add-to-queue
   ☐ Admin panel on website for control
   ☐ Add support for a command to mute/unmute audio sources
   ☐ Don't re-create queue on start if it already exists
@@ -32,9 +36,9 @@ TODO:
   ☐ Stats tracking for games
     ☐ Most won/lost gambling
     ☐ Most trivia answered
+  ☐ Allow %'s for !gamble
 
-Ideas:
-  ☐ Support songrequests -- play through discord?
+Ideas:  
 
 StreamWebRemote:
   - OBS Websocket Connection Mgmt