update debian/copyright for rkitover#183

Assign myself (Rafael Kitover) as the copyright holder for the shell
script portion, since the original utility was just the viml, and
assign original author of AnsiHighlight for the viml portion.

debian/copyright

@@ -3,15 +3,15 @@ Upstream-Name: vimpager
 Upstream-Contact: Rafael Kitover <rkitover@gmail.com>
 Source: http://github.com/rkitover/vimpager
 
-Files: vimpager vimpagerrc *.yml .travis.yml Makefile markdown_src/*.md markdown/*.md autoload/vimpager.vim autoload/vimpager_utils.vim plugin/vimpager.vim prototypes/* prototypes/*/* scripts/* inc/*
+Files: vimpager vimcat vimpagerrc *.yml .travis.yml Makefile markdown_src/*.md markdown/*.md autoload/vimpager.vim autoload/vimpager_utils.vim plugin/vimpager.vim prototypes/* prototypes/*/* scripts/* inc/*
 Copyright: 2016 Rafael Kitover <rkitover@gmail.com>
 License: BSD-2-Clause
 
 Files: scripts/install-sh
 Copyright: 1994 X Consortium <xorg@freedesktop.org>
 License: MIT-4-Clause
 
-Files: vimcat
+Files: autoload/vimcat.vim
 Copyright: 2015 Matthew Wozniski <mjw@drexel.edu>
 License: BSD-2-Clause