Initial investigation of modifications for elasticache support
add config to host ip parsing
piece together new ElastiCache Cache implementation
Add tests for elasticache config updates
add tests for elasti cache factory
add tests for elasti cache factory
add more tests to coverage
change to 0.2 release and add multiple gets on elasticache
update config format after testing on aws
update docs
update docs, clarify cluster host endpoint
Merge pull request #1 from tootedom/aws-elasticache

Aws elasticache