Set ConsumerLanguage and MerchantName as optional parameters

Related #26

Changed minimum-stability on composer to dev

v2.3.2

Merge branch 'develop'

Added prefix option to getInputHidden. Return getFormValues with Ds_ prefix

v2.3.1

Merge branch 'develop'

Added getFormValues method to return form inputs as array

v2.3.0

Merge branch 'develop'

Fixed getAmount with some decimal values on PHP 7.2

• Related #24

Fixed error messages as Array

• Fixed error messages as array on Exceptions #22
• Moved private definitions to protected

Improved Exception details from ErrorCode check

• Improved Exception details from ErrorCode check
• Updated composer packages

Added int cast to response check

Related with issue #20

Added support to OpenSSL. Allow custom input keys and values.

Merge pull request #18 from eusonlito/develop

Added support to OpenSSL. Allow custom input keys and values.

Fixed & check on XML url encode

v2.0.5

Fixed & check on XML url encode