Mess with the version

[Sergey Mitrofanov]

Hello!
In the readme the version is 1.3.1 (2014).
But in releases we can see only 1.2.1. I think it would be better to fix this.
And inside the OptiTypePipeline.py we can see:

Date: April 2014
Version: 1.0

[b-schubert]

fixed in PR #61