Exclude the special "data loader" tool from the standard build

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@993 a333f486-631f-4898-b8df-5754b55c2be0

webservices/exclude.txt

@@ -2,4 +2,5 @@
 # The following source files are not re-distributed with the "build" of the application
 # since they are used solely for constructing other files during the build process
 #
-createfrommail.php
+createfrommail.php
+backoffice.dataloader.php