remove all redesigned checkboxes and radios
Merge pull request #236 from swiss/hotfix/2.1.8

2.1.8 Hotfix, changing source of bootstrap accessibility plugin
Merge branch 'release/2.1.8'
Merge branch 'master' of github.com:antistatique/Swiss-Admin-web-guidelines
Merge branch 'release/2.1.9'
Merge branch 'master' into 2.2.0_fixes

Conflicts:
	assets/sass/layout/checkboxes.scss
	assets/sass/layout/forms.scss
	assets/sass/layout/radios.scss
remove <br> tag and set max width for main title
close #252
fix glyphicons font path
ref #255
add role="alert" to all alerts
fix #255
change icon of collapsible list
ref #258
fix small issue with pseudo [class*=col-]
ref #258
fix typo in collapse.js
fix #258
fix nav-page-list faceted
fix #259
change title of link logo
ref #248
change link:visited colors
ref #247
add info about icons accessibility
fix #249
add aria attribute to drilldown with children and change back link to parent list title
ref #215
add title to top of nav-page-list levels
ref #215
hide back link on screen reader
ref #215
Merge pull request #263 from swiss/2.2.0_fixes

2.2.0 fixes