Merge branch 'release/0.4.0' into dev
Merge branch 'hotfix/v0.4.1' into dev
Merge branch 'hotfix/v0.4.2' into dev
Merge branch 'hotfix/0.4.3' into dev
Merge branch 'hotfix/0.4.4' into dev
#next_stops only returns first instance for each stop
Add more tests
Fix #next_stops

StopTime.next_stops now filters out:
 - repeat visits to the same stop
 - subsequent stops on a single trip
Fix Location.== when comparing their times
Fix unit test
bump version
Merge branch 'release/0.4.5'