Defer test for KVM until we are actually trying to run it.
use the real host name to update the run list
doc/devguide/testing: Add missing references to railties:install:migrations rake test
Merge pull request #1726 from aabes/like-my-name

use the real host name to update the run list
dev: fix errors in pull-requests builds from Dell private builds
dev: builds_for_pull_request(): rename res to builds_for_release

This is a complex function, so let's avoid cryptic variable names
which make it harder to understand
dev: builds_for_pull_request(): rename id to pr_id

This is a complex function, so let's avoid cryptic variable names
which make it harder to understand.  Also id is reused for different
things later in the function.
dev: builds_for_pull_request(): rename build_tmp to valid_builds

This is a complex function, so let's avoid cryptic variable names
which make it harder to understand.
dev: builds_for_pull_request(): rename id to build

This is a complex function, so let's avoid cryptic variable names
which make it harder to understand.
dev: builds_for_pull_request(): rename p to parent_build

This is a complex function, so let's avoid cryptic variable names
which make it harder to understand.
Merge pull request #1727 from aspiers/fix/pull-requests-builds

Merged by devtool for VictorLowther
Merge pull request #1728 from aspiers/fix/engine-migrations

Merged by devtool for VictorLowther