Finish migration to Eclipse RCP framework

[kingargyle]

To help my own sanity in working with Java UI frameworks, I'm experimenting with having the app be built using the Eclipse RCP application framework.

Benefits are:

• More Native Look and Feel
• Easier addition of menus, wizards, and other items.
• Ability to include other file editors like Freemarker IDE for helping with editing squad templates.
• Abilities to provide Preference pages for use with setting the location of configuration files, and providing a UI around managing these.

Disadvanateges:

• Will make a build harder as OSGi knowledge is required.

Alternatives:

• Netbeans Workbench provides similar functionality for Swing applications.

[kingargyle]

Migrated App to eclipse rcp application. All existing functionality is working and in place. There is still a lot of little things that need be included, but platform specific builds work for all 3 supported platforms.