New notebook on parallel efficiency in FiPy and using FiPy in IPython.
Switch to 4 engines
Setting iterations and notebook ready for parameter grid sweep.
Completed timings using IPython's parallel architecture

Added in code to time outside of the notebook.

 * Using docopt to parse arguments.
Add data for laptop run times using IPython's parallel architecture.
Clean up and running jobs for varying numbers of parallel nodes.
Adding more laptop runtimes.
Move run times notebooks and files to subdirectory.
Graphs for speed ups on cluster and data.
Finshed write up and all simulations up to 48 nodes.
Slight adjustments to notebook.
Fixing graphs to use the correct AGG.
Removing notebooks as this has been split out to separate repository.
Merge branch 'fipy-ipython'