Fix error in Xcode 6: Cannot initialize a parameter of type 'NSJSONReadingOptions' (aka 'unsigned long') with an rvalue of type 'nullptr_t'
Merge pull request #2 from ahbeng/master

Fix error in Xcode 6: Cannot initialize a parameter of type 'NSJSONReadingOptions' (aka 'unsigned long') with an rvalue of type 'nullptr_t'