pip 8.1.2 replaces . (dots) with - (dashes) in packages names when accessing pypi server
Added glog command.
Added missing requests to requirements.
Added an installation script.
Merge branch 'crawl'
Moved all tests under one class.
Better handling error responses. Test for 404.
Added test_ok. Slightly different requests.exceptions logging.
Added basic logging.
Improved a help readability, neatened up the naming.
Print out the number of added entries.
Removed debug insert at the end.
Added duplicates handling. DB should have unique a index for that.