Merge pull request #38 from bitovi-components/dev/loosen-deps

Removed unnecessary jQuery dep. Loosened dev deps.
Also switched to yarn and updated travis config.

Author: ilyavf

.travis.yml

@@ -3,5 +3,7 @@ script: npm test
 before_install:
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"
-node_js:
-  - "0.10"
+node_js: 7.3
+cache: yarn
+addons:
+  firefox: "51.0"

package.json

@@ -36,18 +36,16 @@
     "can-view-autorender": "^3.0.4",
     "can-view-model": "^3.1.3",
     "cssify": "0.6.0",
-    "d3": "^3.5.17",
-    "jquery": "~2.1.4"
+    "d3": "^3.5.17"
   },
   "devDependencies": {
-    "documentjs": "git://github.com/bitovi/documentjs#master",
     "funcunit": "^3.0.0",
     "semistandard": "^10.0.0",
-    "steal": "1.3.2",
+    "steal": "^1.3.2",
     "steal-less": "^1.2.0",
-    "steal-qunit": "1.0.1",
+    "steal-qunit": "^1.0.1",
     "steal-stache": "^3.0.5",
-    "steal-tools": "1.2.0",
+    "steal-tools": "^1.2.0",
     "testee": "^0.3.1"
   },
   "steal": {

src/data/column/column.js

@@ -60,7 +60,7 @@ Component.extend({
 		},
 		removed: function() {
 			// check if the chart was not destroyed:
-			if (canViewModel(this.element.parentElement).chart){
+			if (this.element.parentElement && canViewModel(this.element.parentElement).chart){
 				this.viewModel.unloadColumn();
 			}
 		},

src/data/data.js

@@ -1,6 +1,5 @@
 import Component from "can-component";
 import DataVM from './viewmodel';
-import $ from 'jquery';
 import canViewModel from 'can-view-model';
 
 /**