Änderungen

Summary

1. add the ability to retreive orderid from channelabilitypreset (#30) (details)
2. add euler's constant to the Maths package (#28) (details)
3. add GroupUtils and change Group.wurst to use its functionalities (#25) (details)

Commit 213c736fdc02ba5b319a3effc119fd67e1008d48 by frotty add the ability to retreive orderid from channelabilitypreset (#30)
	wurst/objediting/presets/ChannelAbilityPreset.wurst (diff)
Commit 23d6362d26d8b388292bd551d3f146ebf1b6a63a by frotty add euler's constant to the Maths package (#28)
	wurst/math/Maths.wurst (diff)
Commit f63ad25c5cf6d6ca6970dae977f7eff0522fd970 by frotty add GroupUtils and change Group.wurst to use its functionalities (#25)
	wurst/util/GroupUtils.wurst
	wurst/_handles/Group.wurst (diff)