Create TaxClass.php
Update Product.php
Fatal error: Class 'Bigcommerce\Api\Exception' not found

Fixes "Fatal error: Class 'Bigcommerce\Api\Exception' not found" when an Exception is thrown in configure
Allow creating/updating/deleting custom fields
Allow creating/updating/deleting custom fields

You can now work with Custom Fields.

`
use Bigcommerce\Api\Client as Bigcommerce;

$Product = Bigcommerce::getProduct(1);

// Get a collection of Custom Fields for the product ID
Bigcommerce::getProductCustomFields($Product->id);

// Get the Custom Field with the ID #5 for the product ID
Bigcommerce::getProductCustomField($Product->id, 5);

// Create a Custom Field for the product ID
$id = Bigcommerce::createProductCustomField($Product->id, array(
	'name'	=>	'Name of Custom Field',
	'text'	=>	'Value of Custom Field'
));

// Delete the Custom Field with the ID #5 for the product ID
Bigcommerce::deleteProductCustomField($Product->id, 5);

// Or you can do it like other resources as well.
$CustomField = new Bigcommerce\Api\Resources\ProductCustomField(array(
	'name'	=>	'Name of Custom Field',
	'text'	=>	'Value of Custom Field',
	'product_id' => 1 // The ID of the attached product
));

$CustomField->create();
`
Allow creating/updating/deleting custom fields
Update Order.php

This is a core module of BigCommerce PHP API and should work...
Added Travis CI and default PHPUnit config files, added gitignores for test output
Merge pull request #70 from zackkatz/master

Allow creating/updating/deleting custom fields
Merge pull request #66 from watermark/master

Add support for pulling the tax class name on the product resource
Merge pull request #69 from watermark/patch-3

Fatal error: Class 'Bigcommerce\Api\Exception' not found
Merge pull request #71 from Lewiscowles1986/patch-1

Update Order.php
Merge pull request #72 from sgerrand/adds-travis-ci-config

Adds Travis CI PHPUnit configuration