report about SASL support
2012 holidays note
Warn if trying to use SASL when memcached.use_sasl is off.

Without this, a far less helpful error message from the underlying
libmemcached library would be reported.
Fixed tests after chanage to php_memc_do_serverlist_callback()

The php function getServerList() no longer returns a weight value. The tests have been updated to reflect this change.

The need for this change is result of commenting out "add_assoc_long(array, "weight", instance->weight);" in php_memcached.c
Removed memcached.sess_consistent_hashing option.

1. Removed memcached.sess_consistent_hashing which is a lesser version  of memcached.sess_consistent_hash
2. Added default value for memcached.sess_consistent_hash
Merge pull request #52 from memcachier/saslwarn

Warn if trying to use SASL when memcached.use_sasl is off.
Merge pull request #43 from remicollet/issue-infosasl

report about SASL support
Merge branch 'php-memcached-master'
Merge branch 'FixTestsAfterWeightRemoved'
Merge branch 'FixIssue53'