make flake8 happy except long lines
added license_help_text
Merge pull request #1637 from ischneider/flake8-pavement

make flake8 happy except long lines
Merge pull request #1638 from state-hiu/licenses_minor_fix

License Help Text.
I will make flake8 happy right after.
Satisfying a pep8 recommendation.
Moved populate_maplayers, adjusted import statement in tests.py.
Merge pull request #1640 from brylie/master

Moved populate_maplayers, adjusted import statement in tests.py. Fixes  #1473