Added FileUtils to get the contents of a file, and added a couple empty
txt files for storing orders.
Implemented the ServerOrderLibrary

Now able to save orders and view and create different ones, as well as
store order properties and a list of order numbers.
Changes to ServerOrderLibrary

Created ability to specify whether sequential order numbers should be
used. Added default values for properties so they are auto-populated in
the properties file.
Added keyboard shortcuts and double clicks

Selected items and orders or deleting orders can now be done by double
clicking, pressing enter, or pressing delete.
Merge pull request #14 from FutureTemp/0.1

Merge pull request #8 from FutureTemp/master
Merge pull request #15 from FutureTemp/master

Merging from master to 0.1