[buildout] Build cpulimit as part of the buildout procedure

buildout.cfg

 [buildout]
-parts = scripts
+parts = scripts cpulimit
 extensions = mr.developer
 auto-checkout = *
 develop = .
@@ -13,5 +13,12 @@ eggs = beat.core
 beat.backend.python = git git@gitlab.idiap.ch:beat/beat.backend.python
 cpulimit = git https://github.com/opsengine/cpulimit rev=v0.2 egg=false
 
+[cpulimit]
+recipe = collective.recipe.cmd
+cmds = make -C src/cpulimit && cd bin && ln -s ../src/cpulimit/src/cpulimit
+uninstall_cmds = rm -f bin/cpulimit
+on_install = true
+on_update = true
+
 [scripts]
 recipe = bob.buildout:scripts