* added utf-8 markers to all .py files in plugins/filter
* added utf-8 markers to all .py files in plugins/inventory
* added utf-8 markers to all .py files in plugins/lookup
Online SAS is rebranded as Scaleway in 2015. Updated
inventory documentation for the same.
Fixes: #814
Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>