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Replace link to (closing) Components list with link to Poplus list. Closes #1226
Merge branch 'patch-1' of https://github.com/tmtmtmtm/pombola
Update Popolo image urls

The included popolo json is being used as a definition of canonical
data and the image urls in it are expected to be fully qualified so
that they can be downloaded during import. Therefore, it makes sense
if they have the live Peoples Assembly url in them.

For #701
Merge branch 'issues/701-popolo-image-urls' of ssh://git.mysociety.org/data/git/public/pombola
Merge branch 'master' into staging-auto-deployed