We would like to produce a more genetic API so we rename it to a name with a wider scope.

New `slapos_recipe_cmmi_shared_path` option from `slapos` section of
slapos config.
When running software buildout, this with be passed to buildout as
`buildout:slapos-recipe-cmmi-shared-path`

if the message size is too big, the promise process can hang on queue.put and parent process will no be able to read the message.
This will finally result in a deadlock situation.

Since 65f73750 the URLs are cached, so
test was failing because they were not isolated.

/reviewed-on !45

By updating allocation_scope the capacity_scope can be automatically updated.

Still WIP

This is for adjust subject_list and capacity_scope of the computer after the computer been edited.

In this case, we will allow the super users pay eventually the invoices.

Include tests for Request/Revoke certificates
Destroy Software Installation

This includes tests for:
- access person information
- update person information
- get token for the user
- request certificate
- revoke certificate