version bump (1.4.1->1.5.0)

CHANGELOG

+(14 May 2015) Version 1.5.0: Introduced basic plugin infrastructure, 'onConfig' and 'formatResults' hooks
+
 (14 Oct 2014) Version 1.4.1: @todvora's fix for maxDepth (matches readme), and fixes for incorrect counts while using query/limit
 
 (13 Oct 2014) Version 1.4.0: @todvora's fix for nested objects

variety.js

@@ -18,7 +18,7 @@ var log = function(message) {
 };
 
 log('Variety: A MongoDB Schema Analyzer');
-log('Version 1.4.1, released 14 Oct 2014');
+log('Version 1.5.0, released 14 May 2015');
 
 var dbs = [];
 var emptyDbs = [];