#32 - HTML span tag for color and volume keys

[kuhrusty]

Here are two minor changes, although thanks to DOS line terminators getting stripped, it's hard to tell.

• use <span> instead of <p> to set the text color in MediaPlayerMainMission.java line 239 (on my device, <p> adds a blank line after the text)
• if the user presses the volume keys while the audio's not running, adjust the media volume instead of the ringtone volume

If you want me to restore the CRLF in MediaPlayerMainMission.java to make the change more obvious, I will be happy to do so. (I still don't know whether Git or Android Studio did that; I'm on Linux with git's core.autocrlf=input. I haven't used a Microsoft OS since 1996!)

[nibuen]

You can see the deltas in github still, will try and enforce this at some point with linter... but probably will convert to kotlin first