Add dummy seed data in dev environment
Move dev seeds into own file; introduce more randomness to factories
Replace Date.today with Date.current in date_not_in_future_validator_spec
Deleted commented earlier implementation
Fix errors in factories
Merge pull request #40 from NikitaAvvakumov/fix_date_validator_spec

Fix occasionally failing date_validator specs
Merge pull request #39 from NikitaAvvakumov/dummy_seed_data

Add dummy seed data in dev environment