Write setup instruction

[joewandy]

We need a setup instruction

[sjgreig27]

I've got my dev environment working and have updated the README.md to include the dependencies. Once I have access to the project I'll push the changes up to a separate branch. Is there still somewhere where test data for the application can be accessed? Just a small data set to test the application.

[sjgreig27]

I found that this file is missing on setup

https://raw.githubusercontent.com/RonanDaly/pimp/master/venv/lib/python2.7/site-packages/pymzml/obo/psi-ms-4.0.1.obo