Replace explicit version number 8(.0) with ant
filter variables in docs.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1527315 13f79535-47bb-0310-9956-ffa450edef68
Remove unneeded mentioning of version number.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1527318 13f79535-47bb-0310-9956-ffa450edef68