Force use of pip to install dependencies (to enforce wheel usage)

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7@2835 b32b6428-25c9-4566-ad07-03861ab6144f

install.py

@@ -24,10 +24,12 @@ def title(msg):
 
 def setup_develop(path):
     title(path)
+    os.system('cd %s && pip install -e .' % path)
     os.system('cd %s && %s setup.py develop' % (path,PYTHON))
 
 def setup_install(path):
     title(path)
+    os.system('cd %s && pip install -e .' % path)
     os.system('cd %s && %s setup.py install' % (path,PYTHON))