Scale joint visuals

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

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Currently, joint visuals have a fixed size, which is not ideal as they might end up too big for small models and too small for big models.

I'm not sure what the best solution would be here, scaling according to model size? Link size? The PR2 for example, has links of various sizes:

[osrf-migration]

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

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• set assignee_account_id to "557058:6ff86fcb-b7ab-44a5-b8a6-f6d9cae8b6e8"
• set assignee to "chapulina (Bitbucket: chapulina, GitHub: chapulina)"

[osrf-migration]

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

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pull request #1591

[osrf-migration]

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

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• changed state from "new" to "resolved"

[osrf-migration]

Original comment by Nate Koenig (Bitbucket: Nathan Koenig).

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• set version to "all"

[osrf-migration]

Original comment by Nate Koenig (Bitbucket: Nathan Koenig).

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• changed state from "resolved" to "closed"