cosmetic code shuffling
added v3/link/clicks fixtures and test
test new code for links_clicks processing into mongo
updated to include an hourly link_clicks test
added freezegun for mocking datetime tests
starting to add Python3 compatibility
removed unnecessary freezegun
commented-out old daily update code using deprecated api
determine inactive hashes and do not try to update them
make new record which is old in time, checking that we know it should be updated
replaced prints in historics.py with logging
removed obsolete code
update every hour now
show an x on click events
export top clicked articles in specified time frame
small updates to instructions
Merge branch 'feature/switch_to_new_links_api' into develop
v0.2
Merge branch 'release/0.2'