Added a few missing 'protected' keywords.
-rw-r--r-- 96 AUTHORS
-rw-r--r-- 1139 COPYING
-rw-r--r-- 6403 ChangeLog
-rw-r--r-- 1439 README
-rw-r--r-- 2094 Rakefile
-rw-r--r-- 176 TODO
drwxr-xr-x - bin
drwxr-xr-x - lib
drwxr-xr-x - test