Use latest setuptools for slapos, build-rina, erp5testnode and slaprunner

Then we'll upgrade setuptools for everyone at the same time as we switch to
zc.buildout 2.x

component/slapos/buildout.cfg

@@ -131,7 +131,7 @@ interpreter = py
 scripts = py
 
 [versions]
-setuptools = 19.6.2
+setuptools = 28.8.0
 slapos.rebootstrap = 3.7
 zc.buildout = 2.5.2+slapos005
 zc.recipe.egg = 2.0.3+slapos002

software/build-rina/software.cfg

@@ -79,5 +79,6 @@ packages +=
   dh-autoreconf pkg-config doxygen maven xmlto
 
 [versions]
+setuptools = 28.8.0
 zc.buildout = 2.5.2+slapos005
 zc.recipe.egg = 2.0.3+slapos002

software/erp5testnode/software.cfg

@@ -67,6 +67,6 @@ md5sum =  4d4f483d4531eedc321bdd6e460fc9df
 PyXML = 0.8.5
 erp5.util = 0.4.46
 slapos.recipe.template = 2.7
-setuptools = 19.6.2
+setuptools = 28.8.0
 zc.buildout = 2.5.2+slapos005
 zc.recipe.egg = 2.0.3+slapos002

software/slaprunner/common.cfg

@@ -232,5 +232,6 @@ eggs +=
   supervisor
 
 [versions]
+setuptools = 28.8.0
 zc.buildout = 2.5.2+slapos005
 zc.recipe.egg = 2.0.3+slapos002