refs #3490 wondering whether all tests still pass when converting userid to dimension
refs #3490 fixed some tests as the position of userId changed
fix plugin test
I only changed the processed file before but not the expected
refs #3490 removed segment definition as it apparently depends on idSites which I do not quite understand why
Merge pull request #6273 from piwik/3490_userIdAsDimension

User ID should be defined as dimension