test: fix testDictLoggerConfigViaJson The path to the log file in the config did not exist. Change to use the tracker home. Also add a test where the log file directory does not exist. This reports the full path, so have to edit the full path in the error message before comparison.

#!/usr/bin/env python
from __future__ import print_function
import zlib, base64, sys
print(base64.encodestring(zlib.compress(sys.stdin.read())))