Install Important dependencies on Ubuntu

[fernandojunior]

I made scripts to install the dependencies on Ubuntu. You can use them to update the readme.md.

• Shell script to install mongodb 10gen on ubuntu (https://gist.github.com/fernandojunior/367360e12233ca82a1ce)
• Shell script to install pip, virtualenv and virtualenvwrapper on ubuntu (
  https://gist.github.com/fernandojunior/7866864)

[Zizzamia]

nice, if you have time can you send me a pull request for update the readme please.