proview-r: downgrade sr python back to 2.7

software/proviewR/software.cfg

@@ -3,6 +3,7 @@
 extends =
   ../../stack/slapos.cfg
   ../../component/python3/buildout.cfg
+  ../../component/python-2.7/buildout.cfg
   ../../component/pycurl/buildout.cfg
   ../../component/proviewR/buildout.cfg
   ../../component/open62541/buildout.cfg
@@ -33,7 +34,7 @@ parts =
   android-fonts
   dejavu-fonts
 
-python = python3
+python = python2.7
 
 allow-picked-versions = true
 
@@ -46,6 +47,7 @@ command = bash -c 'echo i am updating from git'
 recipe = zc.recipe.egg
 interpreter = python.eggs
 eggs =
+  slapos.toolbox
   websockify
   plone.recipe.command
 scripts = websockify