* Adds files related tests through fs-adapter with PG
* Schema deletions implementations
* Adds Hooks spec
* Fix test
* Adds support for containsAll (numbers and strings)
* Better support for deleteFields and deleteClass
* Recursive JSON update for authData
* Adds node_modules to travis cache
* Disable temporarily to make tests pass
* Adds _perishable_token support for _User class
* ignore when a table creation fails at init (table exists)
* Adds support for AddUnique and Remove
* PG 9.4 compatible functions
* Re-enable tests
* nit
* Better handling of schema creation race
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