Added things to the flipside view controller and some changes in the main view controller
Main View Controller:
	Added methods to the main view controller which are called by the flipside view controller
	Added a if-clause to prevent the app from crashing

Flipside View Controller:
	Added multiple outlets and arrays for the data.
	The tableview is initialized with two default scales.
	The picker is initialized with metric and inch.
	The slider is set to 1.0.
	Added the method that if a scale is selected the didSelectNewScale method of its delegate is called.
	Added the method that if a unit is selected the didSelectUnit method of its delegate is called.
	Added the method that if the slider is moved the didUpdateBrightnessValue method of its delegate is called.
	Added the possibility to add rows to the table by a button on the navigation-bar.