Hardcoded values for range parameters such as base RID or range
size could be the reason the tests produced incorrect results,
as the ranges could get in conflict with already existing ranges
on the server.
Patch dynamically chooses ID and RID range space at the end of
all ranges already present on the server.
https://fedorahosted.org/freeipa/ticket/3662
The plugin hooks into the Nose runner and IPA's logging infrastructure
and calls the appropriate BeakerLib functions (rl*).
IPA's log_manager is extended to accept custom Handler classes.
The ipa-run-tests helper now loads the plugin.
Patr of the work for: https://fedorahosted.org/freeipa/ticket/3621
