- Add back mquandalle:perfect-scrollbar package so that Firefox and Chrome

  stop complaning in browser dev tools console.

Thanks to uusijani and xet7 !

Closes #2057

.meteor/packages

@@ -89,3 +89,4 @@ msavin:usercache
 wekan:wekan-ldap
 wekan:accounts-cas
 wekan-scrollbar
+mquandalle:perfect-scrollbar

.meteor/versions

@@ -116,6 +116,7 @@ mquandalle:jquery-textcomplete@0.8.0_1
 mquandalle:jquery-ui-drag-drop-sort@0.2.0
 mquandalle:moment@1.0.1
 mquandalle:mousetrap-bindglobal@0.0.1
+mquandalle:perfect-scrollbar@0.6.5_2
 msavin:usercache@1.0.0
 npm-bcrypt@0.9.3
 npm-mongo@2.2.33