Merge branch 'dev'

v1.2.0

+Added better error reporting, now channels that fail to play will be highlighted in red rather just quietly throwing an error in the console
+Replaced stop button with pause/play button
*Replaced a HL2:ep2 background with one that does not feature NPCs, I didn't realize how much it stood out from the rest.
*Fixed a bunch of sounds not playing

Also created a changelog file to keep track of this

v1.1.0

Completely rework file system, prune unused sounds, add volume cookie, dramatically reduce repo size

This commit reduces the size of the repo by about 90% by removing all sounds from LFS and the repo, pruning the unused sounds (about 1GB(!) of them), and moving them it's own archive (which will probably be kept in the releases area). This zip must be extracted locally for the site to work.
This commit also saves the selected volume as a cookie for persistence.