chore(patternlab): Fix import

Author: bmuenzenmeyer

core/lib/patternlab.js

@@ -20,7 +20,7 @@ const inherits = require('util').inherits;
 const pm = require('./plugin_manager');
 const packageInfo = require('../../package.json');
 const dataLoader = require('./data_loader')();
-const logger = require('./utilities');
+const logger = require('./log');
 const jsonCopy = require('./json_copy');
 const PatternGraph = require('./pattern_graph').PatternGraph;
 const pa = require('./pattern_assembler');