Some unit tests were failing after ipa-adtrust-install has been run on the
IPA server, due to missing attributes ('ipantsecurityidentifier') and
objectclasses ('ipantuserattrs' and 'ipantgroupattrs'). This patch detects if
ipa-adtrust-install has been run, and adds missing attributes and objectclasses
where appropriate.

https://fedorahosted.org/freeipa/ticket/3852

Differences in the python byte code fails in a build validation
(rpmdiff) done on difference architecture of the same package.

This patch:
 1) Ensures that timestamps of generated *.pyo and *.pyc files match
 2) Python integer literals greater or equal 2^32 and lower than 2^64
    are converted to long right away to prevent different type of
    the integer on architectures with different size of int

https://fedorahosted.org/freeipa/ticket/3858

Drops the code from ipa-server-install, ipa-dns-install and the
BindInstance itself. Also changed ipa-upgradeconfig script so
that it does not set zone_refresh to 0 on upgrades, as the option
is deprecated.

https://fedorahosted.org/freeipa/ticket/3632

Add a new API command 'adtrust_is_enabled', which can be used to determine
whether ipa-adtrust-install has been run on the system. This new command is not
visible in IPA CLI.

Use this command in idrange_add to conditionally require rid-base and
secondary-rid-base options.

Add tests to cover the new functionality

https://fedorahosted.org/freeipa/ticket/3634

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

Rename the 'tests' directory to 'ipa-tests', and create an ipa-tests RPM
containing the test suite

Part of the work for: https://fedorahosted.org/freeipa/ticket/3654