Adding support for Amazon Elasticache (http://aws.amazon.com/elasticache/).  To use, add your elasticache configuration endpoint to your conf as endpointelasticache.config.endpoint={config.endpoint}.  For example, elasticache.config.endpoint="mycachename.asdfjk.cfg.use1.cache.amazonaws.com:11211".
Merge pull request #14 from kamatsuoka/master

Adding support for Amazon Elasticache
adding the ability to specify the timeout duration and timeout unit for the internal future on memcached.
unify results of getting value for an empty key
unify behaviour of setting & deleting values with empty key
Merge pull request #24 from mkubala/master

Empty keys - kind of ehcache compilance, avoiding IllegalArgumentExceptions
Merge branch 'master' of github.com:rmmeans/play2-memcached into rmmeans-master

Conflicts:
	plugin/src/main/scala/com/github/mumoshu/play2/memcached/MemcachedPlugin.scala
Merge branch 'master' into play-2.2
Ensure that the EhCache plugin no longer saves values for empty keys. The values are just ignored and you always get `None`s for empty keys.