Refactor sound support so it can work on both desktop and android

git-svn-id: http://svn.slightlymagic.net/forge/trunk@25800 269b9781-a132-4a9b-9d4e-f004f1b56b58
- Update scripts

git-svn-id: http://svn.slightlymagic.net/forge/trunk@25801 269b9781-a132-4a9b-9d4e-f004f1b56b58
- Converted hardcoded EOT delayed trigger in CopyPermanentEffect

git-svn-id: http://svn.slightlymagic.net/forge/trunk@25802 269b9781-a132-4a9b-9d4e-f004f1b56b58
Flesh out XML read and write utility methods

git-svn-id: http://svn.slightlymagic.net/forge/trunk@25803 269b9781-a132-4a9b-9d4e-f004f1b56b58