* adding a virtual master also adds assignment for the user
* drop unused script
* show the issue when it is not possible to add a virtual master
* more assertion when creating a virtual master
* Subscription Request categories were inverted
* prototype Subscription Request's events view
* display the discussion in read only mode
* use discussion gadget on Support Request
* do not build url by joing strings
* create Virtual Master only for validated Person
* simplify configuration by not requiring to fill the hateoas url in the preferences
* allow to enter the API url on the web site panel
* project's codification is used to generate the local roles
* drop useless field tales which hide the content
* ensure the url is relative to the web site, but without containing a //
* those files exist in slapos_cloud
* desactivat the Supply action
  Force user to supply from the Allocation Supply configuration.
  otherwise, alarms will clean up the manually added Software Installation.
* user has no group if it can not even access the Project
* use souce_project to find the trade condition
  no need to trick source/destination project anymore, as trade_condition_type is used
* add a Sale Supply Line for the Compute Node price
* SoftwareInstallation_getNewsDict has been dropped
* add missing arguments
* ComputeNode_getSoftwareReleaseState was replaced by SoftwareInstallation_getInstallationState
* add activate_kw parameter
* virtual master can be free, and instance payble