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In this final third deliverable, the following were made:
1. The functionality of the following commands was implemented: MKD, SIZE, MDTM, OPTS, FEAT, DELE, RMD, RNFR, RNTO.
2. The FtpCommand interface and FtpCommandRegistry class were created to make the code for command handler functions cleaner.
3. Unit tests for FtpCommandRegistry were added.
4. The video demonstration was added.
5. The README file was filled.

In this deliverable, the following was done:
1. clientHandler function was added. It handles all commands from the user (for authentication, changing directories, etc.). 
2. Java docs were added as the documentation to classes and methods.
3. To make functions, which handle user commands, more readable, they were separated into 4 .java files in a new directory "commandHandlers".
4. README file was initialized and partially filled.
5. Unit tests were added.
6. FTP class diagram was added.