[binary builders] LuaTeX 0.80

Hi, There has been a release of LuaTeX 0.80 in a bit of a secrecy ;) Most plaftorms have already been updated, but a few are still missing: armel-linux, armhf-linux, powerpc-linux, i386-solaris If you want the latest version of ConTeXt supported on your platform, you are invited to run the building scripts. Mojca