Leaf Queries can have arguments

Merge pull request #10 from commadore/handle-leaf-queries-with-arguments

Allow a leaf query to have arguments

v3.1.2

Fix typehint

Get Operation Name from Operation class

v3.1.1

Update OperationInterface.php

v3.1.0: Merge pull request #8 from zombietfk/no-nonstring-aliases

No nonstring aliases

Refactor with Operation top level Queries

Queries and Mutations are now 2nd class and must be added to an Operation to be valid.

Subquery Arguments supported

Merge pull request #6 from commadore/subquery-arguments

Add support for subquery arguments

Code style patch

Merge pull request #5 from commadore/patch-whitespace

Remove echo from test, remove whitespace

v2.0.1: Merge pull request #3 from commadore/minor-rename-to-src

Update library to use src directory as convention

Coded to an Interface

Merge pull request #2 from commadore/update-readme

Update readme