Remove test for unused function parse_marker_gene_copy_numbers

Addresses #8
Remove test_make_test_trees.py

Addresses #6 and #13
Testing is now done in test_make_test_datasets.py
Remove scripts/format.py

Addresses #21
Change scripts and tests to be executable

A few scripts and tests were did not have executable permissions.
Remove unneeded print statements (to stdout)

Remove stdout from test_evaluate_test_datasets.py and evaluate_test_datasets.py
Remove stdout messages from make_test_datasets.py and its test script.
Opted to remove print statements instead of commenting
Remove test for unused function parse_marker_gene_copy_numbers

Addresses #8
Remove test_make_test_trees.py

Addresses #6 and #13
Testing is now done in test_make_test_datasets.py
Remove scripts/format.py

Addresses #21
Change scripts and tests to be executable

A few scripts and tests were did not have executable permissions.
Remove unneeded print statements (to stdout)

Remove stdout from test_evaluate_test_datasets.py and evaluate_test_datasets.py
Opted to remove print statements instead of commenting
Merge branch 'remove_unneeded_tests' of github.com:mlangill/picrust into remove_unneeded_tests

Conflicts:
	picrust/make_test_datasets.py
Merge pull request #28 from mlangill/remove_unneeded_tests

Remove unneeded tests