Disable old fee extensions in non-prod envs

[gbrodman]

The primary annoyance with this is that it means we need (or at least, should) split all tests that use the fee extension into two separate tests -- one that simulates non-prod environments, and one that simulates prod environments. This leads to duplication of many tests but that's fine since this is theoretically temporary.

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This change is 

[gbrodman]

the way this works:

Basically, we change the XML loaders so that in a non-production environment they only load the fee 1.0 extension, and in production environments we only load the fee-0.x extensions. This totally messes up all the tests that use XML and load fee extensions.

We split each of the Domain*FlowTest classes that uses the fee extension into two classes -- one that runs against a faked production environment and uses the fee-0.x extensions and the standard test file which runs against the fee-1.0 extension (in the unit test environment, which is the default).

We move all tests that use the old fee extensions into the production-simulating test classes and duplicate each test in the main class using the 1.0 extension. This does add tests in general, though we should be able to remove the production-simulating tests eventually.

[CydeWeys]

Would there have been a way to do this more simply by making the loader UNITTEST-aware? I.e. don't remove the draft versions of the fee extension except in sandbox, and then just ... don't test specifically test that configuration? Just have normal individual tests for each version of the fee extension?

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[CydeWeys]

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[weiminyu]

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[gbrodman]

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[CydeWeys]

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[CydeWeys]

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