Add source code headers to Java source files

Run the following shell code to add a basic BSD legal notice to
the top of source files while preserving the Byte-Order-Mark:

git ls-files -- '*.java' |
while read f; do
  sed -i '1s|^\(\xEF\xBB\xBF\)\?|&/*L\
 *  Copyright Washington University in St. Louis\
 *  Copyright SemanticBits\
 *  Copyright Persistent Systems\
 *  Copyright Krishagni\
 *\
 *  Distributed under the OSI-approved BSD 3-Clause License.\
 *  See http://ncip.github.com/catissue-tools/LICENSE.txt for details.\
 */\
\
|' "$f"
done