slapos CLI: add slapos list and slapos info.
[slapos_hypermedia] add hateoas URL preference.
[SlapTool] Add getHateoasUrl method.
slapos.slap: add getHateoasUrl support.
[slapos_erp5] testSlapOSERP5SkinSelection: add Hal skin.
[slapos.slap] Implement Partition.getInformation()
fixed call to initializeConnection
slap: update interface.
fixup slap