Compatibility Update.

･ Cleaned up the ambient sounds.
･ Added a few more variations of pigeon.

･ The tropical ambient sounds was slightly toned down.
･ Ambient sounds updated - pigeon, cuckoo, crow and wolf now call separately, with adjustable intervals.
･ The sparrow sound was removed as it couldn't be made to sit naturally in the ambient mix despite multiple edits.. will try again later.

Added a frequency option for StandardNightOwl.
Changed its frequency range from 9-11 to 30-45.

Tweaked:
· Rain
· StandardNight
· JungleDay
· JungleNight

Added new sounds:
· StandardDay
· StandardNight

· Tweaked rain sounds.
· Added wind, night, jungle, and space ambience sounds.

· Added sound for torrential rain.
· Rain frequency was tweaked slightly higher.

small fixes for xml.

Added volume control.

Updated for 1.6