Fix eslint errors

This includes adding a line to `.eslintrc` to allow `console.log`,
`console.warn`, and `console.error`.

.eslintrc

@@ -7,7 +7,8 @@
         "linebreak-style": [2, "unix"],
         "max-len": [2, 80, 4],
         "semi": [2, "always"],
-        "strict": [2, "never"]
+        "strict": [2, "never"],
+        "no-console": [2, {"allow": ["log", "warn", "error"]}]
     },
     "env": {
         "node": true,

src/engine/runtime.js

@@ -205,12 +205,13 @@ Runtime.prototype.deleteBlock = function (e) {
 Runtime.prototype._registerBlockPackages = function () {
     for (var packageName in defaultBlockPackages) {
         if (defaultBlockPackages.hasOwnProperty(packageName)) {
-            // @todo maybe we pass a different runtime depending on package privilege level?
+            // @todo pass a different runtime depending on package privilege?
             var packageObject = new (defaultBlockPackages[packageName])(this);
             var packageContents = packageObject.getPrimitives();
             for (var op in packageContents) {
                 if (packageContents.hasOwnProperty(op)) {
-                    this._primitives[op] = packageContents[op].bind(packageObject);
+                    this._primitives[op] =
+                        packageContents[op].bind(packageObject);
                 }
             }
         }

src/engine/sequencer.js

@@ -73,7 +73,8 @@ Sequencer.prototype.stepThread = function (thread) {
                 blockFunction();
             }
             catch(e) {
-                    console.error('Exception calling block function', {opcode: opcode, exception: e});
+                console.error('Exception calling block function',
+                    {opcode: opcode, exception: e});
             }
         }
     }