New style for drop-down field trigger
Merge branch 'master' of https://github.com/Financial-Times/o-ft-forms into update-select-trigger-style

Conflicts:
	src/scss/_variables.scss
Remove arrow backdrop

This allows us to simply markup and styles
Separate placeholders with commas
Rename o-ft-forms-field-group, section and global error messages classes to comply with BEM
Load base icon styles before checkbox is checked
Merge branch 'master' of https://github.com/Financial-Times/o-ft-forms into update-select-trigger-style

Conflicts:
	src/scss/fields.scss
Add border radius to section and global error message
Update the demo templates with BME compliant classes.
Clean up demo comments. Move inline demos into their own templates to be added to the demo config.json once styles have been defined.
Clean up global and section message colour refrences.
Merge pull request #39 from Financial-Times/fix-classnames

Fix classnames to be BEM compliant
Merge pull request #29 from Financial-Times/update-select-trigger-style

New style for drop-down field trigger
Merge pull request #38 from Financial-Times/load-icons-immediately

Load base icon styles before checkbox is checked
Merge branch 'master' into fix-prefixes-suffixes

Conflicts:
	demos/src/prefix-suffix.mustache
	src/scss/fields.scss