Add log for interactiveness

Author: axic

update

@@ -37,6 +37,7 @@ fs.readdir(path.join(__dirname, '/bin'), function (err, files) {
     .filter(function (version) { return version })
     .map(function (pars) { return { path: pars[0], version: pars[1], prerelease: pars[3], build: pars[5] } })
     .map(function (pars) {
+      console.log('Processing ' + pars.path)
       const fileContent = readFile(pars.path)
       pars.longVersion = buildVersion(pars)
       pars.keccak256 = '0x' + ethUtil.sha3(fileContent).toString('hex')