Change year in LICENSE to 2013
Upgrade pom.xml and add assembly config
Filter memcached log
Add start/stop script and sample configuration.
RemoveColumns now accept key, keys properties
Ignore empty row
Let astyanax to use TokenAware pool type.
Upgrade third party versions.
Remove curator dependencies.
Add asynchronous feature.
Add lock methods.
Upgrade astyanax to 1.56.26
Column range must detect null node.
Fix single key and single column query issue
Fix lock is not expired when locker is disconnected.
Fix typo.
Add batch update for cassandra.
Omit unused logging.
Add default configuration to conf directory.
Fix assembly.xml to output config files to conf directory.