bootsector's improvment

*(bootsector) 12/03/2008
-CD/DVD support added.
-Several bugfixes, turning it as stable as official 0.92 version.
-Using same color palette as of version 0.92 (AspiringSquire's NES Color
Palette)
-Fixed palette bug (Felix the Cat with weird colors)
-NTSC video output quality improvements
-Supporting analog pads