Merge tag 'v2.1.1'

Release of version 2.1.1.
7 jobs for master in 5 minutes and 51 seconds (queued for 1 second)
Status Job ID Name Coverage
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doc-coverage

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robotpkg-sot-hrp2-v3-14.04-debug

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passed #14115
robotpkg-sot-hrp2-v3-14.04-release

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robotpkg-sot-hrp2-v3-16.04-debug

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robotpkg-sot-hrp2-v3-16.04-release

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passed #14120
robotpkg-sot-hrp2-v3-18.04-debug

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passed #14119
robotpkg-sot-hrp2-v3-18.04-release

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