Fix the regression in r1530269. Enabling/disabling sendfile should occur during bind not during start.
Add a warning message if the user tries to explicitly enable sendfile with SSL.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1531659 13f79535-47bb-0310-9956-ffa450edef68
For https://issues.apache.org/bugzilla/show_bug.cgi?id=55620
Correct a copy-paste typo in r1530890

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1531673 13f79535-47bb-0310-9956-ffa450edef68
Review by kkolinko
- disable use of gzip version for included resources
- don't change the content type of the gzip'd version of the resource
- use eTag and last modified date from original rather than gzip'd version
- don't fall back to write when using gzip'd version

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1531696 13f79535-47bb-0310-9956-ffa450edef68
Note requirements for securing the gzipped version of a file.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1531698 13f79535-47bb-0310-9956-ffa450edef68