[Frontend] More sanding on label flex-box conversion

open #431
Moved object-label classes into their own include;
Fixing object-label in edit Elements pool and
Inspector; mixin refactoring;

platform/commonUI/general/res/sass/_object-label.scss

@@ -0,0 +1,72 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT Web includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+// mct-representation surrounding an object-label key="'label'"
+.rep-object-label {
+    @include flex-direction(row);
+    @include flex(1 1 auto);
+    height: inherit;
+    line-height: inherit;
+    min-width: 0;
+}
+
+.t-object-label {
+    .t-item-icon {
+        margin-right: $interiorMargin;
+    }
+    .t-title-label {
+        @include ellipsize();
+    }
+}
+
+mct-representation {
+    &.s-status-pending {
+        .t-object-label {
+            .t-item-icon {
+                &:before {
+                    $spinBW: 4px;
+                    $spinD: 0; // $treeTypeIconW - ($spinBW * 2);
+                    @include spinner($spinBW);
+                    content: "";
+                    display: block;
+                    position: absolute;
+                    left: 50%;
+                    top: 50%;
+                    padding: 35%;
+                    width: $spinD;
+                    height: $spinD;
+                }
+                .t-item-icon-glyph {
+                    display: none;
+                }
+            }
+            .t-title-label {
+                font-style: italic;
+                opacity: 0.6;
+            }
+        }
+    }
+}
+.selected mct-representation.s-status-pending .t-object-label .t-item-icon:before {
+    border-color: rgba($colorItemTreeSelectedFg, 0.25);
+    border-top-color: rgba($colorItemTreeSelectedFg, 1.0);
+}