oo-accept-node: Handle non-existence of /sbin/ip

Modify check_node_public_resolution to rescue from Errno::ENOENT when
running /sbin/ip in case the command does not exist.  This change makes
check_node_public_resolution consistent with the find_ext_net_dev test.

This commit fixes bug 1121224.
Openshift overwrites postgresql.conf during restart, destroying SSL
configuration

https://bugzilla.redhat.com/show_bug.cgi?id=1121727
Bug 1121971: Validate based on domain owner capabilities during app create
Fix syntax error in oo-diagnostics
Merge pull request #5624 from Miciah/bug-1121224-oo-accept-node-handle-non-existence-of-slash-sbin-slash-ip

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Merge pull request #5635 from bparees/postgres_ssl

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Merge pull request #5638 from liggitt/bug_1121971_validate_domain_owner

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Merge pull request #5639 from derekwaynecarr/bug_1122020

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BZ1120897 fixes
Merge pull request #5641 from CowboysFan/bug_1120897

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use ident instead of name in deconfigure invocation
Bug 1122413 - handle server without explicit regions
Bug 1119830: Corrected filename for MCollective server.cfg
Bug 1121883: Added documentation to work around a known VirtualBox issue
Merge pull request #5643 from bparees/master

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Merge pull request #5645 from nhr/bug_1119830

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Allow for 2-leg oauth where there is no token or token_secret
Card origin_node_401 - Fix extended tests

* Refactor gear functional tests
* Refactor upgrade functional tests
Merge pull request #5647 from nhr/bug_1121883

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Merge pull request #5650 from jwforres/oauth_2_leg

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