Use default user to check the objects because the user as customer can not access all objects to check if are different. Add new test to be implement later

add steps to test_request_SlaveInstance_twice. This test is to check that requesting a Slave Instance twice, the instances are created correctly

add new step to test_Person_request_SlaveInstance_Two_Different_SoftwareInstance. add new step to test_Person_request_SlaveInstance_Two_Different_SoftwareInstance. This step is to check if the slave instance and software instance with the same software release are allocated to the same computer partition

Old version of slap library are not using state parameter, so prove that new
version of Slap Tool is capable to speak with them.

implement test_Person_request_SlaveInstance_Two_Different_SoftwareInstance. This test is to check that one Slave Instance is allocated correctly when exists two different Software Instances and Computer Partition. The slave instance must be allocated in Computer Partition that exists one Software Instance with the same Software Release.

Do not try to request start not fully installed computer partition, and wait
until instance setup packing list is stopped, before trying to create hosting
one.

Beside of setting state on Software instance by start/stop requested methods
setup in activities real request. Thanks to this *after* computer partition is
installed (instance setup packing list == stopped) the request becomes
synchronous (...a bit later -- in sense -- just once called).

It shall check for instance hosting, not instance setup.

Setup all required parameters before requesting again.

If internal bootstrap is used there is no need to clutter arguments with not
required command.

implement test test_ComputerPartition_request_SlaveInstance_noSoftwareInstance. This is to check that one Slave Instance will wait allocation if no exists Software Instance installed

Revert "update local roles to test_vifib_customer_a user". Call updateLocalRolesOnSecurityGroups() after login is not allowed. The user was configured correctly on vifib_bt5

This reverts commit de06243f.

Play usual started scenario, and later after it is started, change the decision
and request it stopped.

Also fix docstring.

This was not implemented, and I overlooked it when implementing
-d/--dry-run option for some reason.

It is required in order to pass values like None.

Keep backward compatibility and start automatically just after partition become
available.

Implement start_requested and stop_requested states in order to have stateful
information about software instance requested state.

Asynchronously read software instance state and take proper actions in such
case (only after .available() call for now).

Note: Done in one big commit, as changes are interrelated, and impact system
functionality.

Make it not required, in order to support older versions of slap library.

Default to started, in order to support usual scenarios, when all is started
automatically.

Thanks to partially reverting "Use only externally provided buildout."
(commit 2a0bbcc9) it is possible to use
slapgrid with provided buildout binary, but no one is forced to follow this
way, as old style internal bootstraping procedure is available.

Conflicts, manually merged:

	slapos/grid/slapgrid.py
	slapos/grid/utils.py

Allow to have not defined buildout binary.