Don't upgrade slapos or re6st for now vifib upgrader, only update ntp and include vifib team ssh keys

  Spin-off Channels for SlapOS/VIFIB/Grandenet from VM related ones.
  Fixes for dev/ansible-only installation
  Include more index.html with autoredirect.
  Include README file with explanation for the channels.

  Those changes are required to create the package at the OBS VMs
  environment and they are not needed for average buildout installations.

Logging

See merge request !18

Update wendelin url for a relase

See merge request !16

Use latest slapos release.

Please accept, it passes manual wendelin standalone tests by me.
Please also propagandise change to http://deploy.nexedi.cn/wendelin-standalone so users can start to use it.

See merge request !8

This reverts commit e6c2e9d3.

Conflicts:
	playbook/roles/vm-bootstrap/tasks/main.yml

This reverts commit e6c2e9d3.

Conflicts:
	playbook/roles/vm-bootstrap/tasks/main.yml

Logging

Bug fix and improvment in Ansile vm-bootstrap playbook

See merge request !15

Fix download_playbook for unstable channel.

See merge request !13

Include Unstable channel

Include implementation for define an unstable channel for the playbooks.

This merge include unstable changes of wendelin, not ready yet for stable channel.

See merge request !12