Add Oct 2014 - Sep 2015 Minimum Wage rates
  - 21 and over: £6.50
  - 18-20: £5.13
  - under 18: £3.79
  - Apprentice: £2.73
  - Accommodation rate: £5.08
Merge pull request #1152 from alphagov/minimum_wage_update

[Merge on 1st October before 10 AM]SA - Am I getting the minimum wage - Adjust to new minimum wage rates