client: Fixed bug when both -o user_xattr and -o xtreemfs_acl were specified...

client: Fixed bug when both -o user_xattr and -o xtreemfs_acl were specified and not correctly removed from the options passed to Fuse.

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@3273 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534