 * Fixed NullPointerException when loading old materials that used wireframe.j3md
 * Fixed NullPointerException when loading old materials that used wireframe.j3md

git-svn-id: f9411aee4f13664f2fc428a5b3e824fe43a079a3@7865 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

atomixnmc/jmonkeyengine,sandervdo/jmonkeyengine,weilichuang/jmonkeyengine,amit2103/jmonkeyengine,atomixnmc/jmonkeyengine,tr0k/jmonkeyengine,OpenGrabeso/jmonkeyengine,g-rocket/jmonkeyengine,atomixnmc/jmonkeyengine,GreenCubes/jmonkeyengine,wrvangeest/jmonkeyengine,wrvangeest/jmonkeyengine,InShadow/jmonkeyengine,yetanotherindie/jMonkey-Engine,aaronang/jmonkeyengine,olafmaas/jmonkeyengine,phr00t/jmonkeyengine,weilichuang/jmonkeyengine,GreenCubes/jmonkeyengine,danteinforno/jmonkeyengine,bertleft/jmonkeyengine,bsmr-java/jmonkeyengine,yetanotherindie/jMonkey-Engine,nickschot/jmonkeyengine,shurun19851206/jMonkeyEngine,zzuegg/jmonkeyengine,olafmaas/jmonkeyengine,wrvangeest/jmonkeyengine,bsmr-java/jmonkeyengine,davidB/jmonkeyengine,aaronang/jmonkeyengine,g-rocket/jmonkeyengine,Georgeto/jmonkeyengine,danteinforno/jmonkeyengine,bsmr-java/jmonkeyengine,shurun19851206/jMonkeyEngine,jMonkeyEngine/jmonkeyengine,jMonkeyEngine/jmonkeyengine,mbenson/jmonkeyengine,rbottema/jmonkeyengine,bertleft/jmonkeyengine,aaronang/jmonkeyengine,InShadow/jmonkeyengine,zzuegg/jmonkeyengine,g-rocket/jmonkeyengine,mbenson/jmonkeyengine,sandervdo/jmonkeyengine,yetanotherindie/jMonkey-Engine,mbenson/jmonkeyengine,shurun19851206/jMonkeyEngine,delftsre/jmonkeyengine,g-rocket/jmonkeyengine,atomixnmc/jmonkeyengine,tr0k/jmonkeyengine,Georgeto/jmonkeyengine,d235j/jmonkeyengine,Georgeto/jmonkeyengine,weilichuang/jmonkeyengine,delftsre/jmonkeyengine,jMonkeyEngine/jmonkeyengine,zzuegg/jmonkeyengine,phr00t/jmonkeyengine,OpenGrabeso/jmonkeyengine,delftsre/jmonkeyengine,yetanotherindie/jMonkey-Engine,InShadow/jmonkeyengine,d235j/jmonkeyengine,nickschot/jmonkeyengine,weilichuang/jmonkeyengine,shurun19851206/jMonkeyEngine,amit2103/jmonkeyengine,mbenson/jmonkeyengine,g-rocket/jmonkeyengine,bertleft/jmonkeyengine,d235j/jmonkeyengine,Georgeto/jmonkeyengine,aaronang/jmonkeyengine,phr00t/jmonkeyengine,shurun19851206/jMonkeyEngine,davidB/jmonkeyengine,rbottema/jmonkeyengine,nickschot/jmonkeyengine,Georgeto/jmonkeyengine,danteinforno/jmonkeyengine,amit2103/jmonkeyengine,d235j/jmonkeyengine,danteinforno/jmonkeyengine,g-rocket/jmonkeyengine,OpenGrabeso/jmonkeyengine,d235j/jmonkeyengine,yetanotherindie/jMonkey-Engine,d235j/jmonkeyengine,nickschot/jmonkeyengine,phr00t/jmonkeyengine,skapi1992/jmonkeyengine,sandervdo/jmonkeyengine,GreenCubes/jmonkeyengine,skapi1992/jmonkeyengine,amit2103/jmonkeyengine,InShadow/jmonkeyengine,danteinforno/jmonkeyengine,weilichuang/jmonkeyengine,bertleft/jmonkeyengine,weilichuang/jmonkeyengine,mbenson/jmonkeyengine,OpenGrabeso/jmonkeyengine,yetanotherindie/jMonkey-Engine,atomixnmc/jmonkeyengine,tr0k/jmonkeyengine,davidB/jmonkeyengine,tr0k/jmonkeyengine,bsmr-java/jmonkeyengine,rbottema/jmonkeyengine,Georgeto/jmonkeyengine,olafmaas/jmonkeyengine,davidB/jmonkeyengine,davidB/jmonkeyengine,OpenGrabeso/jmonkeyengine,rbottema/jmonkeyengine,jMonkeyEngine/jmonkeyengine,OpenGrabeso/jmonkeyengine,delftsre/jmonkeyengine,danteinforno/jmonkeyengine,olafmaas/jmonkeyengine,GreenCubes/jmonkeyengine,atomixnmc/jmonkeyengine,wrvangeest/jmonkeyengine,sandervdo/jmonkeyengine,amit2103/jmonkeyengine,shurun19851206/jMonkeyEngine,skapi1992/jmonkeyengine,amit2103/jmonkeyengine,zzuegg/jmonkeyengine,mbenson/jmonkeyengine,skapi1992/jmonkeyengine,davidB/jmonkeyengine