change the test bundle to use "SJIS" instead of "shift-jis" encoding

this is an attempt to fix RT #91719, by using the official encoding name
it should be recognized by FreeBSD and NetBSD.

See https://rt.cpan.org/Ticket/Display.html?id=91719 for details
simplify the titles when documenting methods and functions
typo
Merge branch 'sjis'
t/test.bundle should be considered a binary file
Changes for version 1.311