Add Object.assign polyfill for Node 0.12
Add Object.assign polyfill for Node 0.12

maxogden/electron-packager,sethlu/electron-packager,electron-userland/electron-packager,electron-userland/electron-packager,sethlu/electron-packager,Goobaroo/electron-packager,Goobaroo/electron-packager,malept/electron-packager,malept/electron-packager