update copyright dates of Steven Yi

There are a lot of files changed here. You can verify that they are all legitimate changes with the following command:

~$ cat copyright.patch | grep "Steven Yi" | grep -v ^+ | grep -v ^+++ | wc -l

on the .patch file I've generated (seeing as github doesn't like too many files being changed).

http://ainola.sdf.org/copyright.patch

There are 577 changes - to verify that all of them involve Steven Yi, the above will count how many removals contained the string "Steven Yi": 577 is the output

This patch was achieved by the following command:

~$ find . -name "*.xml" -o -name "*.java" -exec sed -i 's/2000-2003/2000-2014/g' '{}' \;

Where 2003 is replaced incrementally (because I'm not writing a for loop for that).

fixes #294