#145 Patches/Improvements for core files

[Raymond Irving]

[*] Modify documentation
[-] Fixed setTextSelectable() for DOM browsers (except
Opera)
[-] Fixed problem with Safari and setID()
[*] Rename mouse_ns6.js to mouse_dom.js
[*] Rename dynlayer_ns6.js to dynlayer_dom.js
[*] Improvements for LoadPanel
[*] Set dynapi.ua.support to true if browser is DOM
compatible
[+] Add Safari and DOM support
[+] Add FlashSound library to DynAPI