Remove override of instances instance-setting in autoscale groups

Fixes issue introduced in ef47f6316ead386f9274f5c4bc4f828946e0ef54
Fix initialization of instances array in AWS autoscaling group
[vcloud_director] Ensure task :Owner is always present.
[rackspace] fixing more live tests
Merge pull request #2341 from seatgeek/master

Remove override of instances instance-setting in autoscale groups
Merge pull request #2346 from alphagov/vcloud_director_get_task_bug

[vcloud_director] Ensure task :Owner is always present.
Fix initialization of instances array in AWS autoscaling group
Merge branch 'auto-scaling-group-initializer-bugfix' of github.com:faber/fog into auto-scaling-group-initializer-bugfix
Merge pull request #2342 from faber/auto-scaling-group-initializer-bugfix

Fix initialization of instances array in AWS autoscaling group
Release 1.18.0
Fog::Storage::Local#directories#all: Don't break when :local_root folder is missing
[aws|cloudwatch] remove :host key from request
[OS|Volume] Add listing/showing volume types
Merge pull request #2349 from burns/aws_cloudwatch_host_param

[aws|cloudwatch] remove :host key from request
Merge pull request #2343 from grk/openstack-volume-types

[OS|Volume] Add listing/showing volume types
Merge branch 'master' of github.com:fog/fog into test_fix6
Allows custom username for aws spot instances
Merge pull request #2354 from rackspace/test_fix6

[rackspace] fixing broken tests
Merge pull request #2355 from kcen/master

Allows custom username for aws spot instances
Also call #load in case of missing local root folder.