Added 5 more properties (2PosX, 2PosY, Beds, Nets, and Residents).
The OptionsUI class now defaults the increment/decrement buttons to
enabled. It is the responsibility of the class using it to properly disable
them if necessary. The ClinicNode class now disables the
increment/decrement buttons in it's ctor. Also, changed a few if statements
to switch statements.
Hooked the HouseNode up so that it can display beds, bed nets, and repaired
bed nets. Also, included appropriate dialog.