Permissions issue b/c of logging to python package folder

[cwhatley]

If, for example, you have installed the package as root and run as another user, you can't start up anything using this code b/c it is trying to log to a subfolder of the package install directory.

Would be good to eliminate this or have it fail gracefully.

dj-dna-streams-python/dnaStreaming/__init__.py

Lines 15 to 21 in cd1535b

	print("Will log to: {}".format(log_path))
	if not os.path.exists(log_path):
	os.mkdir(log_path)
	fileHandler = logging.FileHandler("{0}/{1}.log".format(log_path, 'dj-dna-streaming-python'))