Remove all uses of #chdir in threaded code
Bug 974933 - Inconsistent message is shown when rhc threaddump for a scaled up app
Bug 1027058: Gracefully handle upgrading zero gears on a node
Remove calls to FileUtils.cd

Remove calls to FileUtils.cd and replace relative paths with absolute
ones - fixes a race condition when multiple threads are trying to
create gears at the same time.
Merge pull request #4101 from ironcladlou/dev/chdir

Merged by openshift-bot
Merge pull request #4108 from ironcladlou/bz/1027058

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Merge pull request #4109 from ncdc/remove-chdir

Merged by openshift-bot
Merge pull request #4107 from jhadvig/jbossas_threaddump

Merged by openshift-bot