Updating plugin interface with updates to support Brother API updates.

[eugenedw]

This pull request includes changes to make the plugin more compatible with the latest Brother API.

Key updates include:

1. Removing deprecated methods as defined in the documentation for the API
2. Added a procedure for specifying the label size (this can be enhanced by having the plugin provide a means for the user to supply the required label size and printer)

[eugenedw]

Please exclude the second commit - 0801a0a

[gordol]

Cool, thanks! I'm out of town until next week, but I can probably take a look at this tomorrow. Hang tight, thanks for the effort!

[gordol]

Is there really no check label in printer method anymore?

[gordol]

We shouldn't hard code it if possible...

[gordol]

hey if you can, make a new branch for this pull request, that way you can do stuff on your master in your fork w/o it affecting your pull request.

[eugenedw]

Sorry about that. Just saw your comments. I should've made those changes in a branch, there've been several since that first pull request. How should I clean this up to make it easier for you? In this latest version I added the ability to parameterize the paper selection. This was a problem when trying to print to some QL models.