- by default extend official profile

 - simplify makefile


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@32564 20353a03-c40f-0410-a6d1-a30d3c3de9de

buildout/Makefile

 software: bin/buildout
-	bin/buildout -c official.cfg
+	bin/buildout
 
 bin/buildout:
 	python bootstrap/bootstrap.py

buildout/buildout.cfg

 [buildout]
-extends = development.cfg
+extends = official.cfg