Add frontend assets and plugin bundles

Add the legacy frontend themes, scripts, and plugin assets required by the main SPOTA interfaces.

assets/plugins/bootstrap-modal/css/bootstrap-modal-bs3patch.css

@@ -0,0 +1,35 @@
+/*!
+ * Bootstrap Modal
+ *
+ * Copyright Jordan Schroter
+ * Licensed under the Apache License v2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Boostrap 3 patch for for bootstrap-modal. Include BEFORE bootstrap-modal.css!
+ */
+
+body.modal-open, 
+.modal-open .navbar-fixed-top, 
+.modal-open .navbar-fixed-bottom {
+  margin-right: 0;
+}
+
+.modal {
+  left: 50%;
+  bottom: auto;
+  right: auto;
+  padding: 0;
+  width: 500px;
+  margin-left: -250px;
+  background-color: #ffffff;
+  border: 1px solid #999999;
+  border: 1px solid rgba(0, 0, 0, 0.2);
+  border-radius: 6px;
+  -webkit-box-shadow: 0 3px 9px rgba(0, 0, 0, 0.5);
+  box-shadow: 0 3px 9px rgba(0, 0, 0, 0.5);
+  background-clip: padding-box;
+}
+
+.modal.container {
+  max-width: none;
+}