The reporting script is complete

The report contains all the figures generated by the pyxsvs.py script,
along with figure captions.
Minor adjustments

- The 'figure title' field is now parsed and used by the report generating
script.
- If the mean count number is greater than 20, the data is histogrammed
  into 2 * mean count number of bins
Adding an regular correlator
Added new feature to pyxsvs.py

New, optional fields in the input file allow to set how many data files
from each spot on the sample are included in the analysis.
Saveing the figures from createStatic.py

The figures generated at the output of createStatic.py are now saved as
*.png files.
The static is now calculated with flat field subtracted
Changed the example data set
removed unnecessary imports
Adding an IPython notebook as usage example
some minor change