Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

  -- Stability issues when installing packages for USRP variants on new VM
     It sometimes timed-out
     Added loop up to 5 tries to add apt-repository
  -- Temporary merge during MergeRequest processing now returns an
     error when there are any conflicts
     Will stop the whole build
  -- Physical simulator now has a XLST for the XML result

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

  - comment to GitLab merge-request does not anymore # as number (misinterpreted as issue number)
  - added local build script w/ generation of HTML result file
Improvements on bash scripts:
  - use of proper option parsing

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>