Add beaglebone target.
Added documentation of RaspberryPi target, named "raspberry"
Switch beaglebone image to armhf.
Merge pull request #42 from jvalleroy/beaglebone

Add beaglebone build target.
Made `SUITE` customizable in makefile.
Change suite back to jessie for now.
Merge branch 'master' of github.com:NickDaly/freedom-maker

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Read SOURCE, SUITE variables from environment and makefile.

It was un-newbie-friendly to need to edit bin/mk_freedombox_image just
to change a few environment variables, so you can now specify those
options on the command line just like any other make variables:

$ make SOURCE=true SUITE=jessie dreamplug

SUITE was also changed back to "sid" again.
Variable export works again.

Apparently, I had switched to make's export function, which isn't the
same as the shell's export.  I must've run bad tests previously.
Tell vmdebootstrap who should own the built image.

Vmdebootstrap currently leaves all files owned by root.  I'm pushing a
patch to make the owning user customizable.  This way, automated
builds will be able to complete without being root for the entire
build.
Pass owner as owner.

vmdebootstrap had already used the "user" variable.
Tee everything.
Removed unused weekly build target.
Moved explicit commands into functions.
Add line break between tar and gnupg.
Removed "--owner" flag: vmdebootstrap doesn't support yet.

Moving these changes to another branch to avoid breaking everybody's
builds.
Correct tee usage.
Hide irrelevant keyboard console messages.
Add kernel package for beaglebone.
Hide newlines.