slaprunner : Try to install libxslt before lxml egg

software/slaprunner/software.cfg

 [buildout]
 extends =
   ../../stack/flask.cfg
-  ../../component/libxslt/buildout.cfg
 
 extensions =
   slapos.rebootstrap
 
 parts =
-  libxslt
   eggs
   template
   runner
@@ -18,6 +16,8 @@ find-links +=
 versions = versions
 
 [template]
+# Force installation of lxml egg properly before instqlling template
+dummy = ${eggs:eggs}
 recipe = slapos.cookbook:template
 url = ${:_profile_base_location_}/instance.cfg
 output = ${buildout:directory}/template.cfg

stack/flask.cfg

@@ -6,8 +6,7 @@ extensions =
 extends =
   ../component/python-2.7/buildout.cfg
   ../component/lxml-python/buildout.cfg
-  ../component/libxslt/buildout.cfg
-
+  
 # Use only quite well working sites.
 allow-hosts =
   *.nexedi.org