Ruby has a safe operator, no need to try anymore

Wow, how did I miss this memo? Ruby 2.3 introduced a [safe operator](http://mitrev.net/ruby/2015/11/13/the-operator-in-ruby/)

Instead of

```ruby
current_user.try(:profile).try(:bio)
```

you can now do

```ruby
current_user&.profile&.bio
```

obie-fernandez
January 21, 2017
