* AWTLoader now supports 16-bit grayscale PNG loading as Luminance16 * AWTLoader uses try/finally on stream * Fix exception in MaterialLoader (was it really that hard to fix, normen?) git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8185 75d07b2b-3a1a-0410-a2c5-0572b91ccdca