- Replace uses of deprecated Bourbon helpers with raw CSS
- Add autoprefixer into the build chain to prefix the now removed helpers
This process was achieved by running through each of the deprecation warnings and using the following bash function to replace it in all files:
```
function bourbon-deprecate() {
grep -rl "@include $1" ./frontend --exclude-dir=.git | xargs sed -i '' -E "s/@include $1[(](.*)[)]/$1: \1/g"
}
```
For some helpers, this did not result in valid CSS, so manual modifications were made.
Closes#1189#1274
Closes issue #1456 This PR adds a single sign on option to the login form, exposes single sign on to the end user, and allows an admin user to set single sign on configuration options.
Closes#1502. This PR adds support for SSO to the new user creation process. An admin now has the option to select SSO when creating a new user. When the confirmation form is submitted, the user is automatically authenticated with the IDP, and if successful, is redirected to the Kolide home page. Password authentication, password change and password reset are not allowed for an SSO user.
