added clustering + loading all things in viewport
limit markers load to 300, start from center
removed american phone number validation
removed adopt-a-hydrant branding
Merge branch 'master' of ssh://github.com/martndemus/adopt-a-hydrant into martnsexpiriment

* 'master' of ssh://github.com/martndemus/adopt-a-hydrant:
  start at centre of Amsterdam
  disable phone formatting
changed location to amsterdam west + relative seed data