mplot3d view_init minor patch

Here is a minor patch for the mplot3d.view_init() function. It:

1. comments this method so that users know that they can use it to programatically rotate or re-set the axes.
2. adds some new functionality so that if no parameters are passed in, the default values (what was specified in the Axes3D constructor) are used instead.

This diff was created with SVN head revision 8199.

I tested the new feature with my own code to verify it works, but don't have any example code or test scripts to submit.

Thanks,
-Ben

mplot3d_view_init.diff (1.93 KB)