* Put prefixes (including msg IDs) in front of log messages to
distinguish them
* Failed lookups get logged under Info as per issue #311
* More accurate messages as per issue #311
So as not to pollute command-line flags with test.* options.
It appears that importing "testing" (from stdlib) will add flags. To
avoid this, we need code to not depend on testing. But, since
testing_utils was previously in the same package as the rest of the
code, it dragged testing in.
Renaming testing_util.go to e.g., util_for_test.go might be enough to
avoid it being compiled with the regular code. We may want it to be
available to tests for other packages -- after all it is utilities for
testing -- so it goes in its own package.
e.g. when it was started with --net=none
weavedns wasn't actually using the docker-assigned ip for anything, so
this change is a simple matter of eradicating it from the code.
Michael Bridgen