Set noxdir on travis
Set noxdir on travis

BrandonY/python-docs-samples,GoogleCloudPlatform/python-docs-samples,JavaRabbit/CS496_capstone,sharbison3/python-docs-samples,sharbison3/python-docs-samples,canglade/NLP,sharbison3/python-docs-samples,JavaRabbit/CS496_capstone,BrandonY/python-docs-samples,BrandonY/python-docs-samples,BrandonY/python-docs-samples,JavaRabbit/CS496_capstone,canglade/NLP,JavaRabbit/CS496_capstone,GoogleCloudPlatform/python-docs-samples,canglade/NLP,GoogleCloudPlatform/python-docs-samples,canglade/NLP,GoogleCloudPlatform/python-docs-samples,sharbison3/python-docs-samples