add ability to delete Elines in Metronet GUI

Change-Id: I7cdcfb78417bed445e10384b65e0117cc5961d1a
diff --git a/xos/gui/src/app/components/eline-side.component.html b/xos/gui/src/app/components/eline-side.component.html
index 09cf33e..2dc616c 100644
--- a/xos/gui/src/app/components/eline-side.component.html
+++ b/xos/gui/src/app/components/eline-side.component.html
@@ -1,4 +1,4 @@
-<div>
+<div class = "elinepanel">
   <h1>ELine Overview</h1>
   <form ng-submit="vm.saveEline(vm.mng.eline)">
     <div class="form-group" ng-hide="vm.mng.createMode">
@@ -26,7 +26,7 @@
       <select required class="form-control"
               id="bwps"
               ng-model="vm.mng.eline.bwp"
-              ng-options="bwp.name as bwp.name for bwp in vm.mng.bwps"
+              ng-options="bwp.name as bwp.name for bwp in vm.mng.bwps | orderBy: 'name'"
       >
       </select>
     </div>
@@ -43,4 +43,5 @@
     </div>
   </form>
   <button type="button" class="btn btn-danger btn-block" ng-click="vm.mng.elinePanel({}, vm.mng.eline, false)">Close</button>
+  <button type="button" class = "btn btn-danger delete-eline" ng-click="vm.deleteEline(vm.mng.eline)">Delete Eline</button>
 </div>
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diff --git a/xos/gui/src/app/components/eline-side.component.ts b/xos/gui/src/app/components/eline-side.component.ts
index ca017c4..a3dde96 100644
--- a/xos/gui/src/app/components/eline-side.component.ts
+++ b/xos/gui/src/app/components/eline-side.component.ts
@@ -26,6 +26,15 @@
       });
   }
 
+  public deleteEline(item: any) {
+    let name = item.name;
+    item.$delete().then((res) => {
+      this.toastr.success(`${name} successfully deleted!`);
+    })
+    .catch((error) => {
+        this.toastr.error(`Error while deleting ${name}: ${error.specific_error}`);
+      });
+  }
 
 }
 
diff --git a/xos/gui/src/app/components/mngMap.component.html b/xos/gui/src/app/components/mngMap.component.html
index e41422f..f809526 100644
--- a/xos/gui/src/app/components/mngMap.component.html
+++ b/xos/gui/src/app/components/mngMap.component.html
@@ -55,7 +55,7 @@
       </ng-map>
 
     </div>
-
+    Changes may not display until page refresh.
   </div>
 </div>
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