Revert changes from r1435126

I do not object the changes. This is a temporal measure until
remaining issues are resolved. Without this I cannot build
Tomcat with Ant with Checkstyle being enabled.

The checks do not pass because there is a number of test cases
in Tomcat-JDBC-pool that have not been converted to JUnit4 yet. Those are org.apache.tomcat.jdbc.test.DefaultTestCase class and its children.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1435600 13f79535-47bb-0310-9956-ffa450edef68
Correct links to specifications and correct chapter numbers mentioned in the text. This is in response to a comment posted on the web site.

I removed a link to "J2EE Blueprints", as that page is gone and it seems wrong to recommend outdated documents that I never used.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1435606 13f79535-47bb-0310-9956-ffa450edef68