Merge pull request #21 from slogsdon/add-auth-mobile

add auth-mobile transaction type

Transfer ownership

Merge pull request #19 from lewisvgd/dev-additional-error-info

Adding utility methods for more granular checking of the auth result …

Merge pull request #14 from seonzoo/dev-batchid

adds getBatchId() to AuthResponse

Merge pull request #13 from psaunders88/patch-1

Removed left over var_dump from file

Corrected usage of transactionId

Realex's documentation makes it look like the `<orderid>` tag for a refund should contain a new unique reference to the refund transaction. However, it turns out that actually, it requires it to be the id of our original payment. 
Therefore, I've corrected our terminology to bring it into line with other drivers that do refunds:
 - `transactionId` is now not used at all - Realex just doesn't care about our reference to this refund
 - A new required parameter called `originalTransactionId`. Other drivers don't seem to need this, so have essentially 'made up' the naming of this.

Merge pull request #10 from philwc/master

Add stored card support

Added method for retrieving the order ID

Merge pull request #8 from cfreear/master

Typo fix

Merge pull request #7 from cfreear/master

Add support for the query request type.