Add /secure/associate to Apache's shibboleth routes
Add /secure/associate to Apache's shibboleth routes

Since 2.1.0, Mconf-Web requires the environment variables to be set when
/secure/associate is accessed for the shibboleth sign in to work properly,
so Apache has to handle it.

mconf/mconf-web,mconftec/mconf-web-uergs,mconf-ufrgs/mconf-web,mconf/mconf-web,mconf-rnp/mconf-web,mconftec/mconf-web-uergs,mconf-ufrgs/mconf-web,mconf/mconf-web,mconf-ufrgs/mconf-web,mconf-rnp/mconf-web,mconf-rnp/mconf-web,mconf-rnp/mconf-web,mconftec/mconf-web-uergs,mconftec/mconf-web-uergs,mconf/mconf-web,mconf-ufrgs/mconf-web