Mitigate client-initiated SSL renegotiation DoS
Merge branch 'reneg-limit' of https://github.com/rdlowrey/php-src into PHP-5.6

* 'reneg-limit' of https://github.com/rdlowrey/php-src:
  Mitigate client-initiated SSL renegotiation DoS
Update NEWS/UPGRADING with openssl additions
Fix build against older OpenSSL libs
More openssl UPGRADING updates
fix linkage

"extern inline" looks like tricky case for portability, but extern
is required with VS. So reduce the case to a starndard one to avoid
unporbatibily.
Add peer certificate verification on windows

Peer certificate verification on Windows using the native certificate store and the Windows API