Remove error message <li> element fully

The text was being removed, but not the actual element. A rendering difference caused the whitespace in IE.

This approach seems broken.
Reduce complexity by moving notice_served into model

This causes a small non-js UI change (the radio button is included), but the end result is completely acceptable.
Integration test for notice fields JS hiding

This has not changed in the current branch, but was untested
Added a Procfile & foreman
Added stubs for optional config to .env file
Cleaned up local setup instructions in readme
Some cleanup & typo correction in readme
new validation messages for multiple tenancy aggreements fields
Removed notice_served attribute from JSON output

This is only used by PDF generation
Merge pull request #454 from ministryofjustice/some_nicities

Some nicities
Merge pull request #453 from ministryofjustice/fix_ie7_validation_ui_bug

Fix ie7 validation ui bug
Merge branch 'master' into entity_collection_branch

* master:
  Removed notice_served attribute from JSON output
  new validation messages for multiple tenancy aggreements fields
  Some cleanup & typo correction in readme
  Cleaned up local setup instructions in readme
  Added stubs for optional config to .env file
  Added a Procfile & foreman
  Integration test for notice fields JS hiding
  Reduce complexity by moving notice_served into model
  Remove error message <li> element fully