Move env var creation to correct install file.
Escape early from endpoint creation when there are none to create

* Avoid doing validation and lsof calls when there are no endpoints to create
for a cartridge.

* Fix unit test executions.

* Tolerate absence of /etc/openshift/node.conf plugins.
Pass ws connections argument.
fix 963080 - url is given for downloaded url carts
Bug 963156
Add trace option to gear script for nicer error messages
Merge pull request #2500 from danmcp/master

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process-version -> update-configuration
Merge pull request #2492 from mrunalp/dev/pybugs

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Merge pull request #2491 from ironcladlou/dev/v2carts/private-endpoints-fix

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Merge pull request #2482 from rajatchopra/master

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Merge pull request #2497 from mrunalp/dev/ws_con

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Merge pull request #2496 from rajatchopra/fix_963080

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Merge pull request #2501 from ironcladlou/dev/v2carts/gearscript

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Merge pull request #2503 from danmcp/master

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