Loosening the version checks in the integration tests is akin to what
was done for api-testing in I6d7db6a05c48de8a57f83e4c8af38ab50271297a
and I317ce587e62f9e94bbafbdabac64156237c4f1e3.
The tightly coupled tests were added in Ieb4b41375d521893f95e2fcb5f4984e7b5a2364c
The change to the condition when original html needs downgrading was
exposed by the test added in Ic3cc3a598f32cad6122964cb8a7376a56be9129f
though not exercised because edited and re-parsed html had the same
versions. Without it, in-flight edits on wikis that might request a
re-parse (think private wikis) when a new semantically equivalent
version is deployed could fails due to trying to find a downgrade path
and none being there.
Needed-By: Iabab0c093dcb21e28c643be6e85cf1a7b54cd999
Change-Id: I33e70df750c6d4b082281fdc8bacdea72662832a
dc02ef2500