create v2 files and reinstate previous changes
Merge pull request #590 from alphagov/pip_checker_updates_now_v2

Create PIP checker as a v2 and reinstate previous changes
Re-add estimate outcome for someone of state pension age.

This was removed as part of a refactor, it highlights a hole
in our integration tests so I've added one.
Some other copy changes.
Merge pull request #591 from alphagov/state_pension_updates

Re-add estimate outcome for someone of state pension age.
Add online application section for Spain
Revert zimabawe exception and add retain passport phrase
Remove redundant phrase
Merge pull request #592 from alphagov/update_zimbabwe_copy

Revert zimabawe exception and add retain passport phrase
Add exceptions paragraph

For people who will turn 16 after 7 October 2013 and get DLA
explain that DWP will contact them shortly after their 16th birthday.
Calculate baby due date as a Date
Add hint for leave start date question
Merge pull request #594 from alphagov/add_plan_your_maternity_leave_hint

Add 'plan your maternity' leave hint with date values
Merge pull request #593 from alphagov/pip_checker_copy_update

Add PIP DLA exceptions paragraph
Add the correct error text and hint to maternity planner
Merge pull request #595 from alphagov/add_plan_your_maternity_leave_hint

Add the correct error text and hint to maternity planner
Publish v2 pip checker
Publish overseas passports
Merge pull request #597 from alphagov/publish_overseas_passports

Publish overseas passports transition updates
Merge pull request #596 from alphagov/publish_pip_checker

Publish v2 pip checker
Adding zimbabwe changes