Fixing unit tests
Convert PHP errors to Exceptions
Only log stations, related to #80
Add coordinates to address

Fixes #80
Added location to Stop

stop/station is deprecated now, use stop/location
Fixed for HAFAS inverted coordinates

Fixes #81
Updated changelog
Added information about CORS

Fixes #82
Added documentation about datetime for stationboard

Fixes #86
Updated composer
Added PHPUnit as depencency
Merge remote-tracking branch 'upstream/master'