"Using math" category needs an upgrade

[osrf-migration]

Original report (archived issue) by Louise Poubel (Bitbucket: chapulina, GitHub: chapulina).

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Here's the category:

http://gazebosim.org/tutorials?cat=math

It says "Gazebo has a custom math library.", which is not true any more since we moved to Ignition-math.

It has a single tutorial, which explains how to set the random seed.

I think the tutorial could be moved elsewhere and the category removed. Not sure where the tutorial could go though.

[osrf-migration]

Original comment by Michael Grey (Bitbucket: mxgrey, GitHub: mxgrey).

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I can think of two options: either the individual ignition projects each have their own tutorials directory, or we create a master repo ignitionrobotics/tutorials for all the projects' tutorials. I'd lean more towards giving each project its own tutorials directory, but maybe that makes the website creation more difficult?

[osrf-migration]

Original comment by Louise Poubel (Bitbucket: chapulina, GitHub: chapulina).

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@nkoenig has already laid the foundation for hosting the Ignition-specific tutorials at https://ignitionrobotics.org, for example:

https://ignitionrobotics.org/tutorials/math/4.0/index.html

I'd vote for removing the math category from http://gazebosim.org/tutorials