Topic/default/fix deprecation grabbing module
Brigging back !7 (merged) because heptapod is doing weird things with topics
There was a missmatched combination of:
- the frame wasn't always correctly grabbed
- grabbing the frame in the situation of a decorator didn't make any sens, so switch to func.module
- the tests were bad and expected "[logilab.common]" while it should have been "[test_deprecation]" because it was there that the depreciation was declared