Update Ember to 3.1

app/styles/bourbon/settings/_asset-pipeline.scss

@@ -0,0 +1,7 @@
+@charset "UTF-8";
+
+/// A global setting to enable or disable the `$asset-pipeline` variable for all functions that accept it.
+///
+/// @type Bool
+
+$asset-pipeline: false !default;

app/styles/bourbon/settings/_deprecation-warnings.scss

@@ -0,0 +1,8 @@
+@charset "UTF-8";
+
+/// Enable or disable output of Bourbon’s deprecation-related Sass warnings.
+/// This variable must be declared _before_ importing Bourbon.
+///
+/// @type Bool
+
+$output-bourbon-deprecation-warnings: true !default;

app/styles/bourbon/settings/_prefixer.scss

@@ -0,0 +1,9 @@
+@charset "UTF-8";
+
+/// Global variables to enable or disable vendor prefixes
+
+$prefix-for-webkit:    true !default;
+$prefix-for-mozilla:   true !default;
+$prefix-for-microsoft: true !default;
+$prefix-for-opera:     true !default;
+$prefix-for-spec:      true !default;

app/styles/bourbon/settings/_px-to-em.scss

@@ -0,0 +1 @@
+$em-base: 16px !default;