New general sync command
Sync uses celery
eol at eof
Conform flake8
Fix sync command and emit err msg if no given svc
add sync to __all__
Triple double quotes on sync docstrings
Add some docs related to adding new services
Add some details to docs
Merge pull request #28 from tkiapril/tvtropes-crawler

Crawler CLI Improvements
remove unused fixture
fix __all__ correctly
add docstring
fix docstring correctly
change docstring
remove return
fix docstring
change docs copyright
fix docs author
add click