minor changes to dlcomments.php to resemble comments.php more closely

minor cosmetic fixes
localize news comments list
use ACP style system for start_styles page + en_US translation
better translation for template pages
English (en_US) language fix for commit a16dfd25ab
ACP style system + en_US translation for start_media page
ACP style system + en_US translation for start_content page
minor fixes in English (en_US) admin.txt
Merge pull request #93 from Thoronador/feature-language-en_US

English translation for a few more admin CP pages