Log Message:
Update php-memcache package to 2.2.6.

2.2.6		2010-10-03

- Fixed pecl bug #16536 (Weight of 0 causes SegFault on memcache_add_server)
- Fixed pecl bug #17130 (Uninitialized tv.tv_usec causing PHP to loop
  endlessly)
- Fixed pecl bug #13623 (Memcache-client makes php segfault in semi-related
  code)