Remove HTML comments
Remove HTML comments

Reduce page load for everything that uses the template. The `end` tags
are obvious, while the latest icon size guidance is best found in Apple
documentation, eg
https://developer.apple.com/library/safari/documentation/AppleApplicatio
ns/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebA
pplications.html

quis/govuk_template,robinwhittleton/govuk_template,quis/govuk_template,jonheslop/govuk_template,alphagov/govuk_template,jonheslop/govuk_template,jonheslop/govuk_template,robinwhittleton/govuk_template,alphagov/govuk_template,jonheslop/govuk_template,quis/govuk_template,alphagov/govuk_template,alphagov/govuk_template,quis/govuk_template,robinwhittleton/govuk_template,robinwhittleton/govuk_template,jonheslop/govuk_template,quis/govuk_template,alphagov/govuk_template,robinwhittleton/govuk_template