Post-GuiAccel Reorganization

- Moved remainder of GuiAccel code elsewhere
- Removed GuiAccel
- PlayerDropdown class created
- Windows filter Created
- Main Windows Filter emptied into windows filter
- Dialog Windows filter moved into windows filter
- Chkdraft moved into Windows filter
- ChkdPlugins moved into Mapping filter

Also:
- Undos now include unit owner changes
Partial Unit Settings

Unit Settings complete sans editing non-unit-name edit boxes.
Complete Unit Settings

- Included the rest of the edit boxes
- Included the reset button
- Now shows weapon name
- Now correctly accounts for equivalent ground/air weapons
Merge pull request #38 from jjf28/development

Pushing Changes to Master