Add support for 'format' field from the v3 draft

Change-Id: I89c32b7b06e758990e18c50b5873cf55305923c7
Support distutils; fix param name in seqmon

Change-Id: I857928a1857fe6e44aa3846b97ddd9e4556ccf61
Merge "Add support for 'format' field from the v3 draft"