* PHp-5.4:
  news for bug #61421
  commit for php bug 61421 enabling SHA2 and RMD160 for openssl signature verification

enabling SHA2 and RMD160 for openssl signature verification

This reverts commit b5b8ea1050837fba5a6cee55e41b4574ed64158e.
Looks like we don't have agreement yet on this for 5.4. Let's keep it in 5.5 for now.

This reverts commit bccd1e672fabc3c788e93075221d47d9f077b167.
Looks like we don't have agreement yet on this for 5.4. Let's keep it in 5.5 for now.

* 5.4:
  Rename openssl_pkcs5_pbkdf2_hmac() to something that doesn't sound like a spell.
  Add PBKDF2 support via openssl()

Conflicts:
	ext/openssl/openssl.c

Summary:
No easy way to put these in the hash extension since we don't really support optional
parameters to certain algorithms. Implemented in openssl for now since it has it already
and is pretty stable.

Only SHA1 is confirmed to work as an algorithm but openssl has a parameter so it can be
changed in the future.

Will backport to 5.4 potentially with Stas' approval.

Test Plan:
Ran newly added tests which came from RFC 6070

Summary:
Stas pointed out that this is named pretty poorly. Go for openssl_pbkdf2()

Summary:
No easy way to put these in the hash extension since we don't really support optional
parameters to certain algorithms. Implemented in openssl for now since it has it already
and is pretty stable.

Only SHA1 is confirmed to work as an algorithm but openssl has a parameter so it can be
changed in the future.

Will backport to 5.4 potentially with Stas' approval.

Test Plan:
Ran newly added tests which came from RFC 6070