Update to 7.0.85

Changelog:
Tomcat 7.0.85 (violetagg)

    Catalina
        fix Prevent a stack trace being written to standard out when running on Java 10 due to changes in the LogManager implementation. (markt)
        fix Avoid duplicate load attempts if one has been made already. (remm)
        fix Avoid NPE in ThreadLocalLeakPreventionListener if there is no Engine. (remm)
        fix 58143: Fix calling classloading transformers broken in 7.0.70 by the fix for 59619. This was observed when using Spring weaving. (rjung)
        fix 62000: When a JNDI reference cannot be resolved, ensure that the root cause exception is reported rather than swallowed. (markt)
        fix 62036: When caching an authenticated user Principal in the session when the web application is configured with the NonLoginAuthenticator, cache the internal Principal object rather than the user facing Principal object as Tomcat requires the internal object to correctly process later authorization checks. (markt)
        fix 62067: Correctly apply security constraints mapped to the context root using a URL pattern of "". (markt)
        fix When using Tomcat embedded, only perform Authenticator configuration once during web application start. (markt)
        fix Process all ServletSecurity annotations at web application start rather than at servlet load time to ensure constraints are applied consistently. (markt)
        fix Minor optimization when calling class tranformers. (rjung)

    Web applications
        add 48672: Add documentation for the Host Manager web application. Patch provided by Marek Czernek. (markt)

    Other
        update Update the NSIS Installer used to build the Windows installer to version 3.03. (kkolinko)

(ryoon)