This change add the following options to the config file:
[limits:storage]
default_queue_paging = 10
default_message_paging = 10
So that the default value of the "limit" URI param is now configurable.
This patch also removes the "actions" cruft.
Implements: blueprint configurable-default-paging
Change-Id: Id38295f1e607226a4259be7744e6ce2d7b6de12e