Fuco1/smartparens — pull request #120 by Jell (2013-06-19 01:38:07+00:00)
Title: Automatic deletion of pairs when content is blank.

Before:
```ruby

do|
end
# Backward delete
|
end

(| )
#Backward delete
| )
```

After:
```ruby
do|
end
# Backward delete
|

(| )
#Backward delete
|
```