[Openid-specs-fapi] Issue #569: FAPI2MS: Remove mention of 'FAPI2-JAR'? (openid/fapi)

[josephheenan]

New issue 569: FAPI2MS: Remove mention of 'FAPI2-JAR'?
https://bitbucket.org/openid/fapi/issues/569/fapi2ms-remove-mention-of-fapi2-jar

Joseph Heenan:

I think this part of FAPI2MS could be improved:

```
We understand that some ecosystems may only desire to implement 1 or 2 of the above 3, it is therefore 
anticipated that a piece of software will be able to conform to each of the methods separately, i.e. there
will be separate tests for the following:

 * FAPI2-JAR
 * FAPI2-JARM
 * FAPI2-JIR
 * FAPI2-HTTPSig
```

In particular:

1. It mentions ‘tests’ without setting any context about the foundation having certification tests for FAPI2MS.
2. These are the only mentions of ‘FAPI2-JAR’ etc in the spec, and I’m not sure introducing the meaning of that term is clear. I’d suggest replacing it with “Signed authorization requests”, “Signed authorization responses”, etc.

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