Strip versions from requirements.txt
Start using PostGIS db backend
Update .gitignore
Fix Python v3 compatibility
More Python v3 compatibility fixes
More Python v3 compatibility fixes
Add Toimipisterekisteri importer
Merge branch 'master' of https://github.com/City-of-Helsinki/linkedevents

Conflicts:
	events/models.py
	events/views.py
	linkedevents/settings/base.py
	linkedevents/settings/dev.py