bump version to 0.6.4 in package.json file
bump version to 0.6.4 in package.json file

SrTobi/joint,chill117/joint,ubergrafik/joint,kmansel/joint,tsuibin/joint,eric-seekas/joint,gagaboy/joint,josenberg/joint,gagaboy/joint,vtalas/joint,laurentj/joint,gagaboy/joint,tsuibin/joint,clientIO/joint,durai145/joint,josenberg/joint,automagic/joint,kumilingus/joint,ubergrafik/joint,DavidDurman/joint,durai145/joint,DavidDurman/joint,SrTobi/joint,vebin/joint,vtalas/joint,alirezamirian/joint,clientIO/joint,ColinFrick/joint,kumilingus/joint,vtalas/joint,kmansel/joint,DavidDurman/joint,kumilingus/joint,validol-ekb/joint,clientIO/joint,validol-ekb/joint,vebin/joint,clientIO/joint,laurentj/joint,kumilingus/joint,chill117/joint,ColinFrick/joint,automagic/joint,alirezamirian/joint,eric-seekas/joint,chill117/joint