New option for installation

[palisadoes]

After running installation again I realized a shortcoming.

If install.py is run without using sudo, the installation assumes a development environment. This is correct, however there is a catch.

Users will most likely not run installation using sudo to start with, and therefore we'll probably get a lot of support calls stating that pattoo doesn't install.

We need a developer option for install.py that exclusively sets things up for testing for example. Also running install.py with an install option could be confusing. We should consider something like this:

• install.py all
• install.py packages
• install.py db
• install.py developer all
• install.py developer packages
• install.py developer db