add unittest with mock

- add json file as api response
- add noconoco_weather test class
- fix module import style
- fix api response item error
delete debug code
add travis CI setup files
add Travis CI badge
fix module load method
modify test script for coverage cmd
modify CI configuration ymls
minor fix
remove coverage pip installation
change to use test config.ini
Merge pull request #2 from smrmkt/feature/noco-weather-test

Feature/noco weather test