Bump the version to 1.1.2

[gemmaleigh]

#1.1.2

• Add missing 2/3 width grid wrappers to example pages (Add missing 2/3 width grid wrappers to example pages #173)
• Update max for date pattern to 2016 (Update max for date pattern to include this year #175)
• Fix warning for the npm engine field (Fix warning for npm engine #171)
• Bump the govuk frontend toolkit to 4.6.1, update the $link-hover-colour swatch. (Bump the govuk frontend toolkit to 4.6.1 #170)
• Remove 'files' from package.json and amend .npmignore (Fix package json as npmignore isnt working #169)
• Fix the breadcrumbs for the 'Icons and images' section (Fix the breadcrumbs for Icons and images #168)
• Make error messages plural rather than using (s) (Make error messages plural rather than using (s) #167)

cc. @tombye, @robinwhittleton, @fofr.

[robinwhittleton]

Happy with this.