New admin command to call connection hooks on an application.
Bug 998363 - Add --help option to GetoptLong list
Bug 998420 - Fixed typo in the --help option for oo-cgroup-template
Bug 996491: Show warning when using snapshot and near disk quota

When the gear user's disk usage is >= 90% of quota, display a warning when
snapshotting or restoring (as these operations can fail in unexpected ways
when disk writes fail).
Bug 988662 - Add exit(255) to the usage() methods for oo-user-var scripts
oo-admin-ctl-user should update child domains when new gear size added
Node Platform - Add .env/user_vars during upgrade

* Add gear_upgrade_extension#pre_upgrade to create .env/user_vars
  directory during upgrade of 2.0.32
<cartridge versions> origin_runtime_219, Fix up Display-Name: field in manifests
https://trello.com/c/evcTYKdn/219-3-adjust-out-of-date-cartridge-versions

Modified carts to make Display-Name attribute more precise
Fix bug 999013: always remove unprocessed env/*.erb files from cartridge dir during compatible upgrade
fix bug 999144 - check gear_file against uid map
Fix bug 999189: gear upgrade extension is a no-op if release version doesn't match supplied version
Merge pull request #3326 from kraman/admin_command_connection_hooks

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Merge pull request #3425 from mfojtik/bugzilla/998363

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Merge pull request #3426 from mfojtik/bugzilla/998420

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Merge pull request #3429 from mfojtik/bugzilla/988662

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Merge pull request #3442 from smarterclayton/oo_admin_user_not_setting_domain

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Merge pull request #3441 from jwhonce/wip/user_vars

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Merge pull request #3444 from dobbymoodge/fix_cart_names_card219

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Merge pull request #3448 from rajatchopra/master

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Merge pull request #3427 from ironcladlou/bz/996491

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