MEP10 - refactored hlines and vlines documentation
Modified hline and vline examples to have only one file and linked them to the documentation
DOC mentions kwargs in vlines and hlines
DOC didn't render properly
Improving triinterp_demo pylab example
Merge pull request #1822 from GBillotey/improved_triinterp_demo

Improved triinterp_demo pylab example
Merge pull request #1795 from NelleV/MEP10_hvlines

MEP10 - refactored hlines and vlines documentation