Hack to make rlm_perl RTLD_GLOBAL

Closes #118
Run post-auth on Access-Challenge if there's a Post-Auth-Type Challenge {} section
Updated EAP types to match IANA
Update to match last commit
Startup check for mismatched OpenSSL library versions

Print OpenSSL version in debug output
Update sections inherit actions *and* priority

Closs #107
Fix typo
Limit the number of entries in the cache.  Closes #156
Always send Message-Authenticator for proxied Access-Requests

It's 2013.  There's no reason avoid security