135877 - convert ab dirtree to use xul tree builder, fix dnd feedback, also 130310, 132362. r/sr=sspitzer

suite/locales/en-US/chrome/mailnews/addressbook/addressBook.properties

@@ -84,6 +84,7 @@ ldap_2.servers.history.description=Collected Addresses
 totalCardStatus=Total Cards in %1$S: %2$S
 ## LOCALIZATION NOTE (matchesFound):  do not localize %S
 matchesFound=%S matches found
+cardsCopied=%S card(s) copied
 
 # LDAP directory stuff
 directoriesListItemNone=None