[Welcoming] Review & troubleshoot a newcomer's pull request

[Dhiraj240]

As part of our ongoing work to welcome newcomers, we need to help them make well-formatted pull requests, and troubleshoot the issues they encounter. This will help newcomers get started in a codebase they may not be familiar with! mag male_detective

(see more issues like this here)

Find open pull requests
https://github.com/publiclab/mapknitter/pulls

See if they're a newcomer

Be encouraging!
Read their Travis errors

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[welcome]

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