retropie-setup - bump version to 4.6

retropie-setup - bump version to 4.5.1

retropie-setup - bump version to 4.5

retropie-setup - bump version to v4.4

retropie-setup - bump version to 4.3

bump version to 4.2

bumped version to 4.1

copyright - update year

image - preserve everything when syncing filesytem hardlinks/xattrs/a…

…cls - thanks superjamie - fixes RetroPie#1642

xpad - allow building in chroot (pass version of chroot kernel)