Make Hyperspy compatible with the upcoming IPython 1.0
Change model.as_signal to take a list of components

Add variable to only use certain components in a model to make a
new spectrum
Merge branch 'master' of github.com:hyperspy/hyperspy
A bit less ugly solution to the ipython dev problem
Merge branch 'master' into NEW_edsSpectrum
BUG-FIX: slicing with float was raising an exception when out of axis limits
Merge branch 'master' into NEW_edsSpectrum
New get_lines_intensity tests
Set default colormap to gray
Merge branch 'master' into NEW_edsSpectrum