optimize OnResourceDuplicate

Optimation according Bob Ray's advice: http://forums.modx.com/thread/87517/modx--getchildids-not-working-in-onresourceduplicate-plugin#dis-post-482323
Optimation OnResourceDuplicate v2

Avoid the former resource demanding reloadContext() method.
Update babel.plugin.php
Update babel.plugin.php
Update babel.plugin.php
Update babel.plugin.php
Merge branch 'master' of github.com:manu37/babel