Energy step fails due to too old numpy

[LourensVeen]

Here's the error message:

Traceback (most recent call last):
  File "/home/lveen/.cerise/api/files/mdstudio/bin/getEnergies.py", line 30, in <module>
    from panedr import edr_to_df
  File "/home/lveen/.local/lib/python2.7/site-packages/panedr/__init__.py", line 3, in <module>
    from .panedr import *
  File "/home/lveen/.local/lib/python2.7/site-packages/panedr/panedr.py", line 48, in <module>
    import pandas
  File "/home/lveen/.local/lib/python2.7/site-packages/pandas/__init__.py", line 23, in <module>
    from pandas.compat.numpy import *
  File "/home/lveen/.local/lib/python2.7/site-packages/pandas/compat/numpy/__init__.py", line 24, in <module>
    'this pandas version'.format(_np_version))
ImportError: this version of pandas is incompatible with numpy < 1.9.0
your numpy version is 1.7.1.
Please upgrade numpy to >= 1.9.0 to use this pandas version

[felipeZ]

fixed with #11