Merge branch 'NON_BLOCKING_IO' of git.php.net:/pecl/caching/memcache into NON_BLOCKING_IO

* 'NON_BLOCKING_IO' of git.php.net:/pecl/caching/memcache:
  revert last one, need to refactor this function 1st
  set stream options before casting to socket to avoid lost of options, making connections failed from time to time
  add MMC_DEBUG, disabled by default
  stupid me. remove debug code
  refactor sasl, fix stupid test code with static user (prev commit), rename setSaslData to setSaslAuthData to match other interfaces
  rename setSaslData to setSaslAuthData
fix Bug #67483 underlinking of zlib (yselkowitz)