<runtime> Card origin_runtime_213: realtime node_utilization checks

Add fact and resource_limits.conf entry for no_overcommit_active

Add flock around container creation and additional check for node
capacity if no_overcommit_active is true, add GearCreationException
for this case, and add return code of 146 to oo-app-create if it
gets GearCreationException on create

Better error to user when gear creation is aborted for exceeding
max_active_gears when no_overcommit_active is true

cache resource_limits.conf in node model

added unit test for no_overcommit_active

added unit test for node_utilization
Fix Origin quickstarts.
Fix up unit test to prevent test pollution, fix variable name typo
Bug 999295: Improve mongodb startup verification reliability

Ensure that mongodb is actually running after calls to `control start`, taking care to return
an error if it's not running. Prevent false-positive reporting of started state.
Bug 1002269 - empty client messages are dropped, should be new line
Status was failing at the curl command on stopped gears due to the -e
Handle scl multi arg escaping a little better
Merge pull request #3524 from ironcladlou/bz/999295

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Merge pull request #3527 from jwforres/bug_1002269_empty_client_messages_dropped

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Merge pull request #3529 from rmillner/pythocalypse

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Merge pull request #3532 from danmcp/master

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Merge pull request #3523 from smerrill/feature/fix-php-quickstarts

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enable ha feature
Merge pull request #3534 from rajatchopra/enable_ha

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Merge pull request #3311 from detiber/runtime_card_213

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