[python-ldap] HOW-TO python-ldap installation on Mac OSX

[Andreas Pflug]

There's only vague and outdated advice for python-ldap installation on
Mac OSX on the http://www.python-ldap.org/download.shtml page, so here
my description how to do this. Please include it on the download page.

This is working on 10.9 Mavericks, and AFAIR it was the same on 10.8
Mountain Lion.

- Install XCode from Apple App Store
- From a command line, run
  xcode-select --install (and aknowledge the command line tools
installation)
  sudo easy_install pip
  sudo pip install python-ldap

After a major OS upgrade (e.g. 10.8->10.9), you'd have to repeat the
procedure.

Regards,
Andreas