Add comment for auth/feat/pbsz/prot command
Add auth/feat/pbsz/prot init implement
Review and update auth/feat/pbsz/prot cmd
Add ssl key and crt
Add bin file and rename load file in lib
Add lib to load path
Implement tls connection

* SUCKed at the sequence of send_response and start_tls, bothered me all
  night
Add vendor/bundle and bundler binstubs, and ignored
Fix prot 'p' to response 504, temp not support PRIVATE

* Eventmaching bug [#13](https://github.com/ibc/EventMachine-LE/issues/13) make TLS data-connection not work
* Spent such long time, note to try again later
Patch cmd_list in directories
Add passwd file and authenticate
Add command bytes
Rename dir ssl to security
Add passive socket, sucked at post_init start_tls
Add gem aws-s3, and amazon
Add s3 service connection
Add bucket_name in amazon_keys
Move establish_s3_connection to ftps_driver, add change_dir
Add dir_content for cmd_list
Fix bytes with head_response