Updated client1/2 and server to include comments for expected
functionality. Updated makefile to remove files ending in ~.
README now contains a step-by-step explanation of the process of RSA key
generation. Files have been added with RSA private & public keys, as
well as the decoded exponents and moduli, for Client1 & 2.
All three java files have been updated to include comments about
checking for input parameters
Client1.java has been updated to include code that checks for valid
input parameters (length, type, value).