used plt.subplots everywhere
changed colorbars
changed to fig.colorbar
changed to plt.subplots()
fixed plot in plot_glcm.py
made plot loop more readable
changed to plt.subplots
changed to fig.subplots_adjust()
changed to fig.subplots_adjust()
changed to fig.subplots_adjust()
changed to fig.subplots_adjust()
changed to fig.subplots_adjust()
changed f to fig
changed f to fig in applications
changed io to ax
Merge pull request #926 from sivapvarma/plt-subplots-examples

DOC: Use standard plt.subplots motif in examples