1- Added picture bee.npy to images folder.
2- Added StopIteration exception to the generate function of the GeneratorSheet and a warning to indicate the PatternGenerator do not have any patterns to push.
StopIteration in GeneratorSheet
Moved nbformat import into load_extension
Added fix for Numpy 1.7.0, and a better explanation of the problem
Removed OpenMP options; use environment variables instead. Fixes issue raised in pull request #256.
Merge remote-tracking branch 'upstream/master'
Removed StopIteration from generate in generatorsheet.py as discussed.
Merge pull request #527 from mjabri/master

Added example NPY-format picture file.  Made GeneratorSheet catch StopIteration exceptions raised in a PatternGenerator, printing a warning rather than aborting, for PatternGenerators that may run out of patterns.
Refactored pylabplot commands to return matplotlib figure objects

The plot_tracked_attributes, matrixplot3d_gnuplot pylabplots have
been removed along with all trailing whitespace.
Simplified IPython display to work with matplotlib figures

Currently using matplotlib figures generated with pylabplot. In
future, this approach can generalise to work with matplotlib
animation objects.
Reordered IPython imports to avoid deprecation warning

The frontend package is now deprecated (since IPython 1.0). The
corresponding deprecation warning has been avoided by reordering the
necessary imports.
Merge branch 'master' into featuremapper
Applied post-merge fixes