Bug#509702: fenix: should list architectures in source stanza

[Philipp Kern]

Package: fenix
Version: 0.92a.dfsg1-5
Severity: normal

fenix currently lists the architectures for which it should be built in
the binary stanza of `debian/control'.  This is wrong.  Instead they
should be moved to the source stanza so that builds fail immediately.

Apart from that: is there a reason why not all !64bit architectures
are listed?  E.g. powerpc is missing from both fenix and fenix-plugins.
There are also other architectures like sparc which have 32bit
userspace.  (Not exactly sure about s390, but probably it does not
have the weird 31bit one.)

I not-for-us'ed both packages on alpha, ia64 and amd64.