Directory for iPython notebooks created.
Merge branch 'master' into dev
move two files to IPython
Upgraded version of HProcessor.

Multiple histogram generation, included observation times viewing.
IPython notebook for DHProcessor.
Rename iDHProcessor to iDHProcessor.ipynb
Update iDHProcessor.ipynb
Update README.md
Update README.md
Update README.md
Rename DHProcessor to DHProcessor.py
simplified histogram plotting.
improved notebook layout.
Fits manipulation example was added.
Improve readme.