Updating AUTHORS.txt for release 1.5.4
Updating AUTHORS.txt for release 1.5.4

rakeshtembhurne/croogo,rakeshtembhurne/croogo,xintesa/croogo,damien-biasotto/croogo,delkyd/croogo,rchavik/croogo,Wouter0100/croogo,Wouter0100/croogo,damien-biasotto/croogo,cvo-technologies/croogo,xintesa/croogo,cvo-technologies/croogo,xintesa/croogo,rakeshtembhurne/croogo,cvo-technologies/croogo,delkyd/croogo,rchavik/croogo,Wouter0100/croogo,delkyd/croogo