Fix 'encode': \xC3 on US-ASCII ...

Sometimes in a newly created server you can get this error when starting a ruby app:

`encode': "\xC3" on US-ASCII (Encoding::InvalidByteSequenceError)

To fix simple export this variables or add to your ~/.bash_profile

export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8

Don’t forget to ‘source ~/.bash_profile’