Change file mode: 755 => 644
Refactor: remove ^M characters at end of lines.
Refactor: simplify code.
Add "# of operations added to memcached node" in operation timeout message.
Reduce the overhead in finding the memcached node for a key.
refactor: follow CamelCase naming convention.
refactor: remove importing NoSuchElementException that's not used.
Merge pull request #7 from jhpark816/joon-dev

Improvements and code refactoring.