Remove deprecated CONF.fixed_range

This was deprecated in Grizzly, and the TODO said remove for Havana.
fixed_range was deprecated in I4ec111079f7a1d253190e6a6008048f992a53f68

DocImpact: Remove deprecated config option

Change-Id: I1f429de7a7091adbd3a178d287b3a90e02664450
Set launch_index to right value

Fix bug 1212648

When boot multiple instances in one request, the launch_index
was not increased.

The fix was increase the launch_index one by one for each instances
in one request.

Change-Id: I27dde8cfae52853d33277c3d8e0e65c91bc6280b
Merge "Remove deprecated CONF.fixed_range"
Merge "Set launch_index to right value"