pyjaco installation

When using the zip file from the githup site the installation fails with

Traceback (most recent call last):
File "pyjaco/setup.py", line 8, in
version = get_version()
File "/home/silentrunner/python/pyjaco/_version.py", line 46, in get_version
raise ValueError('Could not determine version.')

this happens for both installing "standard" way or via virtualenv
pip install pyjaco
or
python setup.py install

when cloning from github site installation works fine standard and virtualenv

testet with ubuntu 12.04

[derpasaurs]

change version = get_version() to version = "1.0.0",