Use new collections in Kayobe

Refactored the code to switch the distribution source of the roles
to new collections for the roles that have already been migrated into
collections.

Updated:

 - requirements
 - role invocations
 - documentation
 - release notes
 - minor whitespace fixes

Change-Id: I8dbb88aa2061b3afcab07caeb30f45b3a5c939af