FLY-319 #time 20m #comment adjusted the arrows of the helping text properly to the actor
Renamed the classes that are used now generically for displaying help, updated label positions, if actor is beside the border
Created a help framework that offeres a simple text and a text with an arrow, that finds its best position automatically
Merge branch 'master' of https://github.com/FAU-Inf2/fly-gdx