flake8 fixes
add tox
add travis yaml
make travis run
remove unused var
add tests to arguments module
remove unused file
rename test to tests
update tox
add tests for sugared env
add test skeleton for daemon tests
add daemon tests
add daemon tests
extract base logic to base test class
code cleanup
expose piped option in source-named
add tests to list-registered
add tests for 'run'
add tests for update-env
add tests for 'source'