Update AbstractResponse.php

Merge pull request #13 from m1n0/configurable-attributes-case

Make attributes case configurable.

Support for getRequiredProperties feature

Added serializedObjectToArray

protect from invalid array access in RecursiveFormatterHelper

Fixing undefined access to $value[$propertyName]

Fixing undefined access to $value[$propertyName]

Merge pull request #7 from OskarD/patch-1

Changed default value to filter included

Added to Mapping class isFilteringIncludedResources method

Added to Mapping class addIncludedResource, getIncludedResources and …

…isFilteringIncludedResources methods