fix jshint warnings

app/adapters/application.js

-import Ember from 'ember';
 import BaseAdapter from './_baseAdapter';
 import UrlTemplates from "ember-data-url-templates";
 

app/components/architecture-viewer.js

 import Ember from 'ember';
 import Themes from './architecture-visualisation-cytoscape/themes';
 
-
-
 export default Ember.Component.extend({
     graph: null,
     entityDetails: null,

app/components/architecture-visualisation-cola.js

@@ -36,7 +36,6 @@ export default Ember.Component.extend({
         clearInterval(this.interval);
     },
     didInsertElement: function() {
-        const log = this.debug.bind(this);
         const width = window.innerWidth;
         const height = window.innerHeight;
         this.debug('element', this.element);
@@ -80,7 +79,7 @@ export default Ember.Component.extend({
         // nodes
         const nodeData = root.selectAll('.node')
             .data(nodes);
-        const groupData = root.selectAll('.group')
+        /*const groupData = */ root.selectAll('.group')
             .data(groups);
         const nodeEnter = nodeData.enter()
             .append('g');
@@ -111,7 +110,7 @@ export default Ember.Component.extend({
         // FIXME does not handle updates (neither enter() nor exit())
         const linkData = root.selectAll('.link')
             .data(links, p => p.id);
-        const link = linkData.enter()
+        /*const link = */linkData.enter()
             .append('path')
             .attr('class', 'link')
             .attr('d', 'M0 0');

app/components/architecture-visualisation.js

@@ -6,8 +6,6 @@ import _ from 'npm:lodash';
 export default Ember.Component.extend({
     init: function() {
         this._super();
-        const self = this;
-        const log = self.debug.bind(self);
         // this.interval = setInterval(function() {
         //     const graph = self.get('graph');
 
@@ -104,7 +102,7 @@ export default Ember.Component.extend({
             // FIXME does not handle updates (neither enter() nor exit())
             const linkData = root.selectAll('.link')
                 .data(links, p => p.id);
-            const link = linkData.enter()
+            /*const link = */linkData.enter()
                 .append('path')
                 .attr('class', 'link')
                 .attr('d', 'M0 0');

app/models/serviceinstance.js

 import BaseEntity from './baseentity';
 import attr from 'ember-data/attr';
-import DS from 'ember-data';
 
 export default BaseEntity.extend({
     name: attr('string'),

app/models/system.js

 import BaseEntity from './baseentity';
 import attr from 'ember-data/attr';
-import DS from 'ember-data';
 
 export default BaseEntity.extend({
     name: attr('string')