More exception handling

Checks for user input to see if it is an integer value.
Handles checking if a number is in a set range.
Also prompts the values input back to the user and asks for a confirmation for things such as world name, ops/white lists, and MOTD.
Also removed socket library as it is no longer needed.
Deleted a couple useless test text files that found their way into my commits too. 

Let me know if you have any questions about the way I did this!