This recipe was colliding with slapos.recipe.template
recipe.

Moreover, this is useless since slapos.recipe.template provide
the same functionality.

This reverts commit b86284e6.

This reverts commit 14bf54b1.

This is just a cosmetic commit, because shellinabox is redirecting
http url to https.

This leads to some bug, since cache-file is deleted
every buildout run.

This recipe was written in order to create a service which download a
file after the buildout run.

rootfs recipe is replaced by downloader recipe which is more generic.

Conflicts:
	component/libcap/buildout.cfg
	component/lxc/buildout.cfg

This is made to be compatible with modifications :
  - 377c6db729
  - a3370049ad
  - c26729e0425

This replace using slappartition name which is better.
Due to uuid4, collision probability is very low.