Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/public/elite/bootstrap/less/responsive-utilities.less

@@ -0,0 +1,194 @@
+//
+// Responsive: Utility classes
+// --------------------------------------------------
+
+
+// IE10 in Windows (Phone) 8
+//
+// Support for responsive views via media queries is kind of borked in IE10, for
+// Surface/desktop in split view and for Windows Phone 8. This particular fix
+// must be accompanied by a snippet of JavaScript to sniff the user agent and
+// apply some conditional CSS to *only* the Surface/desktop Windows 8. Look at
+// our Getting Started page for more information on this bug.
+//
+// For more information, see the following:
+//
+// Issue: https://github.com/twbs/bootstrap/issues/10497
+// Docs: http://getbootstrap.com/getting-started/#support-ie10-width
+// Source: http://timkadlec.com/2013/01/windows-phone-8-and-device-width/
+// Source: http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/
+
+@-ms-viewport {
+  width: device-width;
+}
+
+
+// Visibility utilities
+// Note: Deprecated .visible-xs, .visible-sm, .visible-md, and .visible-lg as of v3.2.0
+.visible-xs,
+.visible-sm,
+.visible-md,
+.visible-lg {
+  .responsive-invisibility();
+}
+
+.visible-xs-block,
+.visible-xs-inline,
+.visible-xs-inline-block,
+.visible-sm-block,
+.visible-sm-inline,
+.visible-sm-inline-block,
+.visible-md-block,
+.visible-md-inline,
+.visible-md-inline-block,
+.visible-lg-block,
+.visible-lg-inline,
+.visible-lg-inline-block {
+  display: none !important;
+}
+
+.visible-xs {
+  @media (max-width: @screen-xs-max) {
+    .responsive-visibility();
+  }
+}
+.visible-xs-block {
+  @media (max-width: @screen-xs-max) {
+    display: block !important;
+  }
+}
+.visible-xs-inline {
+  @media (max-width: @screen-xs-max) {
+    display: inline !important;
+  }
+}
+.visible-xs-inline-block {
+  @media (max-width: @screen-xs-max) {
+    display: inline-block !important;
+  }
+}
+
+.visible-sm {
+  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
+    .responsive-visibility();
+  }
+}
+.visible-sm-block {
+  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
+    display: block !important;
+  }
+}
+.visible-sm-inline {
+  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
+    display: inline !important;
+  }
+}
+.visible-sm-inline-block {
+  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
+    display: inline-block !important;
+  }
+}
+
+.visible-md {
+  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
+    .responsive-visibility();
+  }
+}
+.visible-md-block {
+  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
+    display: block !important;
+  }
+}
+.visible-md-inline {
+  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
+    display: inline !important;
+  }
+}
+.visible-md-inline-block {
+  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
+    display: inline-block !important;
+  }
+}
+
+.visible-lg {
+  @media (min-width: @screen-lg-min) {
+    .responsive-visibility();
+  }
+}
+.visible-lg-block {
+  @media (min-width: @screen-lg-min) {
+    display: block !important;
+  }
+}
+.visible-lg-inline {
+  @media (min-width: @screen-lg-min) {
+    display: inline !important;
+  }
+}
+.visible-lg-inline-block {
+  @media (min-width: @screen-lg-min) {
+    display: inline-block !important;
+  }
+}
+
+.hidden-xs {
+  @media (max-width: @screen-xs-max) {
+    .responsive-invisibility();
+  }
+}
+.hidden-sm {
+  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
+    .responsive-invisibility();
+  }
+}
+.hidden-md {
+  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
+    .responsive-invisibility();
+  }
+}
+.hidden-lg {
+  @media (min-width: @screen-lg-min) {
+    .responsive-invisibility();
+  }
+}
+
+
+// Print utilities
+//
+// Media queries are placed on the inside to be mixin-friendly.
+
+// Note: Deprecated .visible-print as of v3.2.0
+.visible-print {
+  .responsive-invisibility();
+
+  @media print {
+    .responsive-visibility();
+  }
+}
+.visible-print-block {
+  display: none !important;
+
+  @media print {
+    display: block !important;
+  }
+}
+.visible-print-inline {
+  display: none !important;
+
+  @media print {
+    display: inline !important;
+  }
+}
+.visible-print-inline-block {
+  display: none !important;
+
+  @media print {
+    display: inline-block !important;
+  }
+}
+
+.hidden-print {
+  @media print {
+    .responsive-invisibility();
+  }
+}