mongoid/mongoid — pull request #3377 by hbakhtiyor (2013-11-07 06:57:10+00:00)
Title: Add flexible persistable create methods with multiple new documents.

Now these methods accept inserting multiple new documents without square brackets.
e.g.
```ruby
Person.create({ title: "Mr" }, { title: "Mrs" })
Person.create([{ title: "Mr" }, { title: "Mrs" }])

# bang version
Person.create!({ title: "Mr" }, { title: "Mrs" })
Person.create!([{ title: "Mr" }, { title: "Mrs" }])
```