Merge pull request Netflix#446 from carl-mastrangelo/readd

add back API that was accidentally deleted in refactor

Merge pull request Netflix#430 from elandau/misc

config: Misc cleanup

Merge pull request Netflix#429 from elandau/bugfix/reduce_property_re…

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Bugfix/reduce property resolution

Merge pull request Netflix#427 from elandau/bugfix/reduce_property_re…

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config: Fix property resolution when config not loaded

Merge pull request Netflix#424 from elandau/bugfix/default_config

config: Ensure dynamic config is always loaded for defaults

Merge pull request Netflix#423 from elandau/bugfix/getIfSet

config: Fix getIfSet

Merge pull request Netflix#423 from elandau/bugfix/getIfSet

config: Fix getIfSet

Merge pull request Netflix#422 from elandau/bugfix/updates

config: Property update behavior

Merge pull request Netflix#421 from elandau/bugfix/overrides

config: Fix isLoaded not set in the correct order

Merge pull request Netflix#420 from elandau/bugfix/overrides

config: Simplify how overrides are applied