software/neoppod & stack/erp5: Hook in zodbutils

As advised by @Tyagov this adds zodbutils egg [1,2] to our software
stack: both NEO and ERP5 (since stack/erp5/ inherits from
neoppod/software-common.cfg)

I have not build-tested this patch but I hope it should be ok.

/cc @nexedi

[1] https://lab.nexedi.com/nexedi/zodbtools  
[2] https://pypi.python.org/pypi/zodbtools

/reviewed-on !116

software/neoppod/software-common.cfg

@@ -43,6 +43,7 @@ recipe = zc.recipe.egg
 eggs = neoppod[admin, ctl, master, storage-importer, storage-mysqldb, tests]
   ${python-mysqlclient:egg}
   ZODB3
+  zodbutils
 
 [slapos-deps-eggs]
 recipe = zc.recipe.egg
@@ -103,6 +104,7 @@ md5sum = 81ab5e842ecf8385b12d735585497cc8
 [versions]
 slapos.recipe.template = 2.9
 ZODB3 = 3.10.7
+zodbutils = 0.0.0.dev3
 # Required by slapos.toolbox = 0.61
 slapos.toolbox = 0.61
 PyRSS2Gen = 1.1