[Placeholder] Update State Pension content and bug fix

https://www.pivotaltracker.com/story/show/66432592


- [ ] 1. Cut from all results:

This information reflects the current law. The State Pension may [change in the future](/increase-state-pension-age).

- [ ] 2. Age Result 1a:

- change:  ^You will claim the [new State Pension](state-pension) when you reach your State Pension age.^
to: ^You will claim the [new State Pension](/new-state-pension) when you reach your State Pension age.^

- [ ] 3. Age result 2:

Change: If you don’t get the full basic State Pension you might still be able to [pay voluntary National Insurance contributions](/voluntary-national-insurance-contributions).

To: You may want to claim [Class 3a voluntary National Insurance contributions](/voluntary-national-insurance-contributions/who-can-pay-voluntary-contributions) if you don’t get the full basic State Pension. 

Add under voluntary contributions heading and and content

##Increase your State Pension based on your partner’s National Insurance record

Check if you can [increase your basic State Pension with your partner’s (or late or former partner’s) National Insurance contributions](state-pension-through-partner).

- [ ] 4. Estimate result 1, 2

Change 3rd bullet under ##More about the state pension 

Change: - [voluntary contributions](/voluntary-national-insurance-contributions) 

To: - [Class 3voluntary contributions](/voluntary-national-insurance-contributions/who-can-pay-voluntary-contributions) 

Change 4th bullet point ##More about the state pension 

Change: -  [increasing your basic State Pension with your partner’s (or late or former partner’s) National Insurance contributions](/state-pension/eligibility)

To: [increasing your basic State Pension with your partner’s (or late or former partner’s) National Insurance contributions](state-pension-through-partner)

- [ ] 5. Estimate 5:

Change 1st bullet under ##More about the state pension 

Change: [voluntary contributions](/voluntary-national-insurance-contributions) 

To: [Class 3voluntary contributions](/voluntary-national-insurance-contributions/who-can-pay-voluntary-contributions) 

Change 2nd bullet point below ##More about the state pension 

Change: [increasing your basic State Pension with your partner’s (or late or former partner’s) National Insurance contributions](/state-pension/eligibility)

To:  [increasing your basic State Pension with your partner’s (or late or former partner’s) National Insurance contributions](state-pension-through-partner)

- [ ] 6. Update result 3 to:

You must be at least 20 years old for the calculator to work out how much [new State Pension](/new-state-pension) you’ll get. 

Your State Pension age is [result from 1 and 2]

You’ll reach State Pension age on [state_pension_date]

How much State Pension you get depends on how many years of [National Insurance contributions](/national-insurance/overview) you have.

^You’ll need at least 10 years to get any State Pension.^ 

Find out more information about the [new State Pension](/new-state-pension).

- [ ] BUG

DOB 06.04.58 Male - this user should have 36 qualifying years available at the start of validation (eg, the start of his session) and as his birthday is in April this figure should increase by one year, to 37 yrs, but not until April 14.  However, the Calculator has already 'turned over' and is  producing the figure of 37 yrs now.
 
If you run the case again and change the birth month to May - so 06.05.58 - the qualifying years available at the start of validation is 36, as it should be.
 
If you run other similar cases with birthdays in March & April there's the same fault.  For example DOB 29.03.64 Female - this user should have 30 qualifying years available at the start of validation and this should not increase to 31 until we 'reach' March.  However, the Calculator has already moved on to 31, but if you input the date of birth as 29.05.64 it moves back to 30 qualifying years available at the start of the session.