Massive update! Added custom IPython-notebook-extensions; Overhaul of all files

Details:

--Added custom version of recently checked out version of the
  IPython-notebook-extensions from their GitHub page. These are very
  cool extensions but tend to be a bit buggy. So to ensure that they
  work as expected and to ensure consistency, I will just distribute
  them here and periodically update them manually as IPyLogbook needs.

--Completely overhauled the directory structure to generalize
  applications to various projcets

--Added new .config file to hold needed values. This enables complete
  portability of an IPyLogbook via simply changing values.

--All inner-logbook links now use the python-markdown.js extension to
  use Python variables set by .config file parsing to dynamically set
  the URLs. This enables IPyLogbook portability.

--Removed the example logbook entry