fixed showing/hiding claimant solicitor details
refactored multiplePersons module; fixed some minor issues
updated the claimants code to preserve entered user data when user changes landlord type
added documentation for multiplePersons module
cleaned up the multiplePersons code
finished updating copy for claimants
refactored multiple persons module to prepare it for defendants
fixed the 'same address' functionality for claimants
fixed claimant different address functionality
Merge branch 'no_of_claimants' into no_of_claimants_backend

* no_of_claimants:
  fixed claimant different address functionality
  fixed the 'same address' functionality for claimants
  refactored multiple persons module to prepare it for defendants
  finished updating copy for claimants
  cleaned up the multiplePersons code
  added documentation for multiplePersons module
  updated the claimants code to preserve entered user data when user changes landlord type
  refactored multiplePersons module; fixed some minor issues
  fixed showing/hiding claimant solicitor details