Added length and mass preferences and wired into the application object initialization of the OpenRocket UnitGroup statics.
There is currently an issue in the Simulation list in that the motors are not being displayed. This is because currently the motor dao is not wired into the application.
Also included is a Motor sqlite database which is populated from thrustcurve downloads. Includes primitive thrustcurve plotting system. This will soon be wired into the openrocket application to supply motors for simulation execution.