Warn if Nengo version is newer than latest tested version
TODO:
[x] I moved the error to __init__.py, since otherwise if you use an earlier nengo version you just get an ImportError because SpikingRectifiedLinear doesn't exist in Nengo. So we need to check and error early (before these imports). However, I'm not sure how to test this early error, since it happens in __init__.py so we can't use monkeypatch (at least not in any way I'm aware of).
Check Nengo version for compatibility.
TODO:
__init__.py, since otherwise if you use an earlier nengo version you just get anImportErrorbecauseSpikingRectifiedLineardoesn't exist in Nengo. So we need to check and error early (before these imports). However, I'm not sure how to test this early error, since it happens in__init__.pyso we can't use monkeypatch (at least not in any way I'm aware of).