Link and dummy pdf
Merge branch 'master' into pdf_divelog

* master: (70 commits)
  Show guide on event panel
  Add non-guided dives to customer bookings
  Statistics navbar state
  Refactor customer search
  Fix whitespace for buttons in production
  Record deployments with New Relic
  Add page class to body tag
  Delete events
  Delete customers
  Add guide to event
  Manage guides
  Refactor trips controller
  Fix feature spec with select2 for certification name
  New Relic
  New Relic
  Delete portrait placeholder
  Autocomplete certification name
  Don't jump to anchor when restoring open tab
  Show recent customers by default
  Fix custom event name
  ...

Conflicts:
	Gemfile.lock
	config/routes.rb
	spec/features/customer_registration_spec.rb
First version of logbook
Merge branch 'pdf_divelog'

* pdf_divelog:
  First version of logbook
  Link and dummy pdf