Test fix for shell_exec_func_test.rb

For some reason on OpenShift Enterprise the setup user hack wasn't working.
Fixes to cleanup during app operation failures
Bug 965105: Cannot delete application
<oo-accept-node> Bug 964089 - Fix check_cgroup_procs

https://bugzilla.redhat.com/show_bug.cgi?id=964089

Check for UIDs that are between GEAR_MIN_UID and GEAR_MAX_UID

Support for mounting cgroup controllers either under /cgroup/all or
/cgroup/<controller>
enable downloading of cartridges
Bug 962673
Merge pull request #2569 from fotioslindiakos/Bug965105

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Merge pull request #2571 from rajatchopra/master

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Merge pull request #2570 from danmcp/master

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Fix bug 957461
Merge pull request #2553 from detiber/bz964089

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Merge pull request #2572 from pmorie/bugs/957461

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Fix bug 965357: add guard against export in PATH in rhcsh
Merge pull request #2555 from brenton/shell_exec_func_test1

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Merge pull request #2564 from abhgupta/abhgupta-dev

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Merge pull request #2573 from pmorie/bugs/965357

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