Simplify markup for radio buttons and checkboxes
Merge branch 'master' of https://github.com/Financial-Times/o-ft-forms into simplify-checkboxes-radios

Conflicts:
	src/scss/_variables.scss
	src/scss/radio-checkbox.scss
Merge pull request #23 from Financial-Times/simplify-checkboxes-radios

Simplify markup for radio buttons and checkboxes