Rails 3.0.20 upgrade - parse_json_times

Just a note. We moved our application from 3.0.19 to 3.0.20 and many
tests
were failing.

It appears the default behavior changed for json decoding.
ActiveSupport.parse_json_times was not checked previously and it is now.
To fix this we have added this to our application.rb:

ActiveSupport.parse_json_times = true

Hopefully this saves someone else some time. We would love feedback if
there is something more elegant or correct for this convention.

Many thanks for the security patches!!