I've changed my mind about putting resources in a dedicated maven submodule. I will add omod-1.8 for 1.8 resources and always compile it with 1.8.
We will lose a compile check for 1.8 resources against 1.9, but we will catch any problems easily when running tests with 1.9 profile.
We will still have a compile check for omod-common, which will contain framework only.
RESTWS-363 to make it easy for tests to be ignored when running with a different profile so I can still test integration pretty well.