version up : HAProxy 1.5.4.
update : bash 4.3 patchlevel 30.
slapos-testing: add libnetworkcache egg as dependency.

buildout can be run and may need libnetworkcache in order to run tests (if zc.buildout.testing.buildoutSetUp() is called).
Revert "slapos-testing: add libnetworkcache egg as dependency."

This reverts commit 6909fe3b92a3abfc7f922c477458ff11fcab1187.
Use newer slapos.recipe.build (0.13) for gitclone.
Version up: slapos.libnetworkcache.
Version up: slapos.core 1.2.4.1.
version up : HAProxy 1.5.5.
version up eggs.
version up : setuptools 6.0.2.
slaprunner: version up slapos.toolbox.
generic wrapper: change quoting to avoid [: too many arguments
kvm: install cns.recipe.symlink
minor pbs.py fix (generation of comment lines)
slaprunner: fix errors.log permission issue
kvm, slaprunner: use toolbox 0.40.4
rdiff-backup: leave 1.0.5 as default, override for resilient stack
kvm: pin cns.recipe.symlink
resiliency: publish all feed URLs
slaprunner: Add a backup signature using sha256sum