Settings (Milestone 6 Calendar Tool Abstract Model)

```
public class Settings
extends java.lang.Object
```
This is the stuff stored in a settings file. Need to figure out if we want to cache a copy of this in the user (or tool-wide (if there is such a thing)) workspace or just always get it from the file. It would seem from the requirements that it does always come from the file, so defining a cached version in the model may be crossing the boundary into implementation.

Fields
Modifier and Type	Field and Description
`(package private) CalendarSpecificSettings`	`cal`
`(package private) SessionWideSettings`	`ssession`

Constructors
Constructor and Description
`Settings()`

Class Settings