Refs #16703

- Add organisation website
- Multiple comments per organisation
- Remove second email address from contact person
- Make tests pass using MySQL backend
- Upgrade Django from 1.4 to 1.6
- Upgrade all other dependencies
Change readonly inputs to be disabled.
Make contact person's title optional
Add data migration to comments.
Refs #18939

Correct year in email template.
Merge pull request #5 from eea/feature_16703

Feature 16703