v0.4.1

Bigfix release:

• Skip complexity calculation by directiveEstimator when astNode is undefined #21

v0.4.0

• Added field extensions estimator #19
• fieldConfigEstimator is now deprecated in favor of fieldExtensionsEstimator

v0.3.0

#16 Calculate query complexity outside of validation context

v0.2.3

Fixes #15

v0.2.2

Allow graphql-js version ^0.13

v0.2.1

Add support for graphql-js version 14.

• Fixes #13