[Merge] lp:~nataliabidart/ubuntu-dev-tools/multiple-series-for-project-upload into lp:ubuntu-dev-tools

[Stefano Rivera]

This doesn't support the case where a milestone exists but has no release yet.

Otherwise it looks good
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https://code.launchpad.net/~nataliabidart/ubuntu-dev-tools/multiple-series-for-project-upload/+merge/36354
Your team Ubuntu Development Team is requested to review the proposed merge of lp:~nataliabidart/ubuntu-dev-tools/multiple-series-for-project-upload into lp:ubuntu-dev-tools.