NOTICE

Licensed under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with the License.  You may obtain
a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
License for the specific language governing permissions and limitations
under the License.

Portions of this software were developed at Brown University in
Providence, Rhode Island with support in part from the National Science
Foundation (NSF LIS SBR 9720368, NSF IIS-0112432, NSF 9721276, and NSF
DMS-0074276) and DARPA (GALE contract HR0011-06-2-0001).