add cyrus-sasl
add firefox. builds, but install target is not implemented yet

getting it to install properly needs some manual copying
around of files in dist/.

the tarball method as described in
http://www.linuxfromscratch.org/blfs/view/svn/xsoft/firefox.html
doesnt work for us, as they assume gnu tar - the generated tar.bz2
is invalid.

the patch firefox-gregor.patch has been taken from @GregorR 's
pkgsrc-patches repo, and the parts stripped off that didnt apply
anymore.

since this package takes more than an hour to build with 8 cores,
i decided to rather push early, as getting the install step working
right may require another couple of rebuilds.
busybox: fix bug that caused short read on certain rare files