Changed how the two sets of axes are created. Now using mpl_toolkits.axes_grid.parasite_axes to create twin set of axes. However, this is disabled by the forced axisgrid=False and the old method is still used. Once matplotlib 0.98.6 is out, we can check what version of mpl is present, and if it is 0.98.6, then the new method will be used. With the old method, one can already specify an existing figure to plot into. With the new method, one can specify an existing figure as well as the viewport location in the figure. Also fixed:
Changed how the two sets of axes are created. Now using mpl_toolkits.axes_grid.parasite_axes to create twin set of axes. However, this is disabled by the forced axisgrid=False and the old method is still used. Once matplotlib 0.98.6 is out, we can check what version of mpl is present, and if it is 0.98.6, then the new method will be used. With the old method, one can already specify an existing figure to plot into. With the new method, one can specify an existing figure as well as the viewport location in the figure. Also fixed:

- bug when show_contour was called with cmap
- set vmin/vmax correctly when show_grayscale is called
- only reset viewport limits minima from 0.0 to 0.5 rather than from any negative value to 0.5

git-svn-id: 83a0274dba4329d458142e4079227af35a786d9d@80 2f3f69f2-b874-4715-96d5-35985bcb53a6

allisony/aplpy,mwcraig/aplpy