memcache with more algebra
expose client to wrapper types
a mergeable store for memcached stores of strings
prefer abstract injection
memcache (mergable) long store
prefer Injection.connect with ByteArrayInjection shim
formatting and docs
strings -> stringStore
 Change to Future.None
mysql test fixes
Merge pull request #82 from softprops/memcache-string-mergeable

Memcache string mergeable
do not call get directly on an opt
Merge pull request #87 from rubanm/mysql_test_fix

MySQL test cleanup
Merge pull request #4 from twitter/develop

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