Address line validation

javascript to display error message when 5th line of address is entered
back end validation of address to catch addresses > 4 lines in non-js mode
standardization of capitalization and pluralization of Defendant, Claimant, contact in error messages
use Claimant in error messages if only one claimant, otherwise Claimant 1, Claimant 2, etc.
Do we need this change?