Discourage system setup.py install
I think that we should discourage the @sudo python setup.py install
@ command since can mess up the packages in the system.
That instructions can be found in https://leap.se/en/docs/client/user-install#Show.me.the.code.
The user phip in the #leap-dev chanel is having some problems after doing that (http://paste.debian.net/hidden/901b3e19/).
Instead, we can offer to use the @pkg/scripts/bootstrap_develop.sh@ script, that makes all the needed to get working the app from code inside a harmless virtualenv.
(from redmine: created on 2013-11-06, closed on 2013-11-22, relates #4185 (closed))