Plugin options

This is the default configuration of the plugin:

{ sass: // accepts all parameters to the legacy renderSync()
	{ importer: null
	, indentType: 'tab'
	, indentWidth: 4
	, linefeed: 'lf'
	, omitSourceMapUrl: false
	, outFile: undefined
	, outputStyle: 'compressed'
	, sourceMap: false
	, sourceMapEmbed: false
	, sourceMapRoot: undefined
	, functions: {}
	, charset: true
	, quietDeps: true
	, verbose: false
	, logger: sass.Logger.silent
	}
, postcss:
	{ use: false
	, plugins: []
	, custom:
		{ parser: undefined
		, stringifier: undefined
		, syntax: undefined
		}
	}
}