Renamed "Test Client" to "Simple Client"
Renamed "Test Server" to "Server"

Create utils-lib project, as a library to store useful utility classes

Moved client-lib :: Console.java to utils-lib project

utils-lib :: ArrayOps
A class of static operations on Arrays. Currently only contains array subtraction

utils-lib :: Node
A class representing a node in a doubly-linked list, allowing such a list to be traversed
Minor changes which should have been included in the last update
Merge branch 'master' of https://github.com/janslow/cs-a-group

Merging changes by Peter York with Jay Anslow's changes