Fixes an error of missing context after logging in while deploying. (#498)

```
> Error! Unknown error: TypeError: Cannot read property 'username' of undefined
TypeError: Cannot read property 'username' of undefined
    at /usr/local/lib/node_modules/now/build/bin/now-deploy.js:316:115
    at Generator.next (<anonymous>)
    at c (/usr/local/lib/node_modules/now/build/bin/now-deploy.js:760:99)
```

bin/now-deploy.js

@@ -73,8 +73,7 @@ const argv = minimist(process.argv.slice(2), {
 })
 
 const help = () => {
-  console.log(
+  console.log(`
-    `
   ${chalk.bold(`${logo} now`)} [options] <command | path>
 
   ${chalk.dim('Commands:')}
@@ -148,8 +147,7 @@ const help = () => {
   ${chalk.gray('–')} Displays comprehensive help for the subcommand ${chalk.dim('`list`')}
 
     ${chalk.cyan('$ now help list')}
-`
+`)
-  )
 }
 
 let path = argv._[0]
@@ -187,9 +185,7 @@ if (argv.config) {
 }
 
 if (Array.isArray(autoAliases)) {
-  console.log(
+  console.log(`${chalk.red('Deprecated!')} The option ${chalk.grey('--alias')} will be removed soon.`)
-    `${chalk.red('Deprecated!')} The option ${chalk.grey('--alias')} will be removed soon.`
-  )
   console.log('Read more about the new way here: http://bit.ly/2l2v5Fg\n')
 }
 
@@ -204,7 +200,7 @@ if (deploymentName || wantsPublic) {
 let alwaysForwardNpm
 
 Promise.resolve().then(async () => {
-  const config = await cfg.read()
+  let config = await cfg.read()
   alwaysForwardNpm = config.forwardNpm
 
   if (argv.h || argv.help) {
@@ -217,6 +213,7 @@ Promise.resolve().then(async () => {
     let token
     try {
       token = await login(apiUrl)
+      config = await cfg.read()
     } catch (err) {
       error(`Authentication error – ${err.message}`)
       process.exit(1)
@@ -284,14 +281,10 @@ async function sync({ token, config: { currentTeam, user } }) {
       // once the deployment has finished
       Object.assign(gitRepo, repo)
     } else if (isValidRepo === 'no-valid-url') {
-      stopDeployment(
+      stopDeployment(`This URL is neither a valid repository from GitHub, nor from GitLab.`)
-        `This URL is neither a valid repository from GitHub, nor from GitLab.`
-      )
     } else if (isValidRepo) {
       const gitRef = gitRepo.ref ? `with "${chalk.bold(gitRepo.ref)}" ` : ''
-      stopDeployment(
+      stopDeployment(`There's no repository named "${chalk.bold(gitRepo.main)}" ${gitRef}on ${gitRepo.type}`)
-        `There's no repository named "${chalk.bold(gitRepo.main)}" ${gitRef}on ${gitRepo.type}`
-      )
     } else {
       stopDeployment(`Could not read directory ${chalk.bold(path)}`)
     }
@@ -308,13 +301,9 @@ async function sync({ token, config: { currentTeam, user } }) {
   if (!quiet) {
     if (gitRepo.main) {
       const gitRef = gitRepo.ref ? ` at "${chalk.bold(gitRepo.ref)}" ` : ''
-      console.log(
+      console.log(`> Deploying ${gitRepo.type} repository "${chalk.bold(gitRepo.main)}" ${gitRef} under ${chalk.bold((currentTeam && currentTeam.slug) || user.username || user.email)}`)
-        `> Deploying ${gitRepo.type} repository "${chalk.bold(gitRepo.main)}" ${gitRef} under ${chalk.bold((currentTeam && currentTeam.slug) || user.username || user.email)}`
-      )
     } else {
-      console.log(
+      console.log(`> Deploying ${chalk.bold(toHumanPath(path))} under ${chalk.bold((currentTeam && currentTeam.slug) || user.username || user.email)}`)
-        `> Deploying ${chalk.bold(toHumanPath(path))} under ${chalk.bold((currentTeam && currentTeam.slug) || user.username || user.email)}`
-      )
     }
   }
 
@@ -372,9 +361,7 @@ async function sync({ token, config: { currentTeam, user } }) {
 
       if (isTTY) {
         try {
-          console.log(
+          console.log(`> Two manifests found. Press [${chalk.bold('n')}] to deploy or re-run with --flag`)
-            `> Two manifests found. Press [${chalk.bold('n')}] to deploy or re-run with --flag`
-          )
           deploymentType = await promptOptions([
             [
               'npm',
@@ -488,9 +475,7 @@ async function sync({ token, config: { currentTeam, user } }) {
       }
 
       if (/[^A-z0-9_]/i.test(key)) {
-        error(
+        error(`Invalid ${chalk.dim('-e')} key ${chalk.bold(`"${chalk.bold(key)}"`)}. Only letters, digits and underscores are allowed.`)
-          `Invalid ${chalk.dim('-e')} key ${chalk.bold(`"${chalk.bold(key)}"`)}. Only letters, digits and underscores are allowed.`
-        )
         return process.exit(1)
       }
 
@@ -501,15 +486,11 @@ async function sync({ token, config: { currentTeam, user } }) {
 
       if (val === undefined) {
         if (key in process.env) {
-          console.log(
+          console.log(`> Reading ${chalk.bold(`"${chalk.bold(key)}"`)} from your env (as no value was specified)`)
-            `> Reading ${chalk.bold(`"${chalk.bold(key)}"`)} from your env (as no value was specified)`
-          )
           // Escape value if it begins with @
           val = process.env[key].replace(/^@/, '\\@')
         } else {
-          error(
+          error(`No value specified for env ${chalk.bold(`"${chalk.bold(key)}"`)} and it was not found in your env.`)
-            `No value specified for env ${chalk.bold(`"${chalk.bold(key)}"`)} and it was not found in your env.`
-          )
           return process.exit(1)
         }
       }
@@ -519,19 +500,13 @@ async function sync({ token, config: { currentTeam, user } }) {
         const secrets = await findSecret(uidOrName)
         if (secrets.length === 0) {
           if (uidOrName === '') {
-            error(
+            error(`Empty reference provided for env key ${chalk.bold(`"${chalk.bold(key)}"`)}`)
-              `Empty reference provided for env key ${chalk.bold(`"${chalk.bold(key)}"`)}`
-            )
           } else {
-            error(
+            error(`No secret found by uid or name ${chalk.bold(`"${uidOrName}"`)}`)
-              `No secret found by uid or name ${chalk.bold(`"${uidOrName}"`)}`
-            )
           }
           return process.exit(1)
         } else if (secrets.length > 1) {
-          error(
+          error(`Ambiguous secret ${chalk.bold(`"${uidOrName}"`)} (matches ${chalk.bold(secrets.length)} secrets)`)
-            `Ambiguous secret ${chalk.bold(`"${uidOrName}"`)} (matches ${chalk.bold(secrets.length)} secrets)`
-          )
           return process.exit(1)
         }
 
@@ -580,9 +555,7 @@ async function sync({ token, config: { currentTeam, user } }) {
     if (clipboard) {
       try {
         await copy(url)
-        console.log(
+        console.log(`${chalk.cyan('> Ready!')} ${chalk.bold(url)} (copied to clipboard) [${elapsed}]`)
-          `${chalk.cyan('> Ready!')} ${chalk.bold(url)} (copied to clipboard) [${elapsed}]`
-        )
       } catch (err) {
         console.log(`${chalk.cyan('> Ready!')} ${chalk.bold(url)} [${elapsed}]`)
       }
@@ -613,9 +586,7 @@ async function sync({ token, config: { currentTeam, user } }) {
 
   if (plan.id === 'oss') {
     if (isTTY) {
-      info(
+      info(`${chalk.bold((currentTeam && `${currentTeam.slug} is`) || `You (${user.username || user.email}) are`)} on the OSS plan. Your code will be made ${chalk.bold('public')}.`)
-        `${chalk.bold((currentTeam && `${currentTeam.slug} is`) || `You (${user.username || user.email}) are`)} on the OSS plan. Your code will be made ${chalk.bold('public')}.`
-      )
 
       let proceed
       try {
@@ -658,9 +629,7 @@ async function sync({ token, config: { currentTeam, user } }) {
     now.on('upload', ({ names, data }) => {
       const amount = data.length
       if (debug) {
-        console.log(
+        console.log(`> [debug] Uploaded: ${names.join(' ')} (${bytes(data.length)})`)
-          `> [debug] Uploaded: ${names.join(' ')} (${bytes(data.length)})`
-        )
       }
       bar.tick(amount)
     })
@@ -692,9 +661,7 @@ function printLogs(host, token, currentTeam, user) {
   logger.on('error', async err => {
     if (!quiet) {
       if (err && err.type === 'BUILD_ERROR') {
-        error(
+        error(`The build step of your project failed. To retry, run ${cmd('now --force')}.`)
-          `The build step of your project failed. To retry, run ${cmd('now --force')}.`
-        )
       } else {
         error('Deployment failed')
       }