Deprectate Order->Total() as it conflicts with casting of Total DB field #811
Description
How about deprecating Order's Total() method and suggest using it's alias instead, GrandTotal()?
It conflicts with casting of Total DB field for e.g. GridField when I want to dispay it with European decimal numbers. (See related #779)
This can be done in the next SS5 main release, as it's a breaking change and I don't know how many modules (or custom installations) use it right now.
Of course we can add a rector for easier upgrading to silverstripe-rector