Followup to r1561083
Remove svn:mime-type property from *.dtd files.
The value was application/xml-dtd.

A mime-type is not needed on these source files, and it is inconvenient:
application/* mime types make SVN to treat the files as binary ones.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1561635 13f79535-47bb-0310-9956-ffa450edef68
Correct typo in definition of default value for contentType attribute of jsp:directive.page element in jspxml Schema and DTD.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1561640 13f79535-47bb-0310-9956-ffa450edef68