Version 0.4.2

Fixed design of the race track system for 1/24 to 1/32 scale RC cars.

• Fix the length of the special barrier body related to a U-turn compensation barrier.

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Notes:

• Import from the repository jsconan/things
• Extract of the pull request jsconan/things#49

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Pull requests:

• Feature/Import from repo Things/Version 0.4.2 by @jsconan in #12
• Release 0.4.2 by @jsconan in #13

Full Changelog: 0.4.1...0.4.2