KISS: RemoveType is a simpler fix for .tr; explain .da files; order our

KISS: RemoveType is a simpler fix for .tr; explain .da files; order our
LanguagePriority by a first-order comparison and drop negligable translations
from our ordered priority preference list entirely.

A better comparison would be total number of documents in-sync, or some
convoluted weight ordering each document by which are more in sync than
others. Leaving that puzzle to an interested hacker.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1791807 13f79535-47bb-0310-9956-ffa450edef68