Changes in data types

[schriftgestalt]

When a lib contains a that has no actual floating point part, it is converted into an . I though whatever is in a lib should stay as it is.

example:

	<key>com.typemytype.robofont.b2.layerStrokeColor</key>
	<array>
		<real>0.5</real>
		<real>1.0</real>
		<real>0.0</real>
		<real>0.7</real>
	</array>

will become

		<key>com.typemytype.robofont.b2.layerStrokeColor</key>
		<array>
			<real>0.5</real>
			<integer>1</integer>
			<integer>0</integer>
			<real>0.7</real>
		</array>