 * Native extraction will place natives in working directory unless its non-writable, in that case it will place them in <home dir>/.jme3/natives_<apphash>  * Hopefully fixed NPE in computing extraction hash
 * Native extraction will place natives in working directory unless its non-writable, in that case it will place them in <home dir>/.jme3/natives_<apphash>
 * Hopefully fixed NPE in computing extraction hash

git-svn-id: 5afc437a751a4ff2ced778146f5faadda0b504ab@8486 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

chototsu/MikuMikuStudio,chototsu/MikuMikuStudio,chototsu/MikuMikuStudio,chototsu/MikuMikuStudio