ignoreTransform to check for pkg.browserify.transform

There is an edge case where ignoreTransform will not work if your package.json specify transforms in an array format.

```
	"browserify": {
		"transform": [
			["reactify", {
				"es6": true
			}],
			"bulkify", ["browserify-istanbul", {
				"ignore": ["**/*/*.json"]
			}]
		]
	}
```

This change checks if it is an array and extract the index0 to check for the name of the transform.
6.3.1