[Plot] Remove x-axis tick ellipses

Remove ellipses from x-axis ticks and reversal of tick text.  This
allows PNG export to export ticks correctly instead of reversed.

Fixes #2177

platform/commonUI/general/res/sass/plots/_plots-main.scss

@@ -268,7 +268,6 @@
 
 .gl-plot-tick,
 .tick-label {
-    @include reverseEllipsis();
     font-size: 0.7rem;
     position: absolute;
     &.gl-plot-x-tick-label,

src/api/composition/CompositionCollection.js

@@ -177,7 +177,15 @@ define([
     CompositionCollection.prototype.load = function () {
         return this.provider.load(this.domainObject)
             .then(function (children) {
-                return Promise.all(children.map(this.onProviderAdd, this));
+                return Promise.all(children.map(function (c) {
+                    return this.publicAPI.objects.get(c);
+                }, this));
+            }.bind(this))
+            .then(function (childObjects) {
+                childObjects.forEach(function (c) {
+                    this.add(c, true);
+                }, this);
+                return childObjects;
             }.bind(this))
             .then(function (children) {
                 this.emit('load');

src/plugins/plot/res/templates/mct-plot.html

@@ -193,7 +193,7 @@
                               left: (100 * (tick.value - min) / interval) + '%'
                           }"
                           ng-title=":: tick.fullText || tick.text">
-                         {{:: tick.text | reverse}}
+                         {{:: tick.text }}
                      </div>
                 </mct-ticks>
 

src/plugins/plot/src/inspector/PlotYAxisFormController.js

@@ -46,7 +46,7 @@ define([
             },
             {
                 modelProp: 'range',
-                objectPath: 'form.yAxis.range',
+                objectPath: 'configuration.yAxis.range',
                 coerce: function coerceRange(range) {
                     if (!range) {
                         return {