[Types] label -> name

Change label to name, log a warning to console if a typeDef
is registered with a label.

Fixes https://github.com/nasa/openmct/issues/1568.

API.md

@@ -146,7 +146,7 @@ registry.
 eg.
 ```javascript
 openmct.types.addType('my-type', {
-    label: "My Type",
+    name: "My Type",
     description: "This is a type that I added!",
     creatable: true
 });
@@ -157,7 +157,7 @@ The `addType` function accepts two arguments:
 for an object.
 * An object type specification. An object type definition supports the following 
 attributes      
-    * `label`: a `string` naming this object type
+    * `name`: a `string` naming this object type
     * `description`: a `string` specifying a longer-form description of this type
     * `initialize`: a `function` which initializes the model for new domain objects 
     of this type. This can be used for setting default values on an object when 

example/generator/plugin.js

@@ -75,7 +75,7 @@ define([
             })
         });
         openmct.types.addType("generator", {
-            label: "Sine Wave Generator",
+            name: "Sine Wave Generator",
             description: "For development use. Generates example streaming telemetry data using a simple sine wave algorithm.",
             cssClass: "icon-telemetry",
             creatable: true,

src/api/types/Type.js

@@ -53,7 +53,7 @@ define(function () {
      */
     Type.prototype.toLegacyDefinition = function () {
         var def = {};
-        def.name = this.definition.label;
+        def.name = this.definition.name;
         def.cssClass = this.definition.cssClass;
         def.description = this.definition.description;
         def.properties = this.definition.form;

src/api/types/TypeRegistry.js

@@ -19,6 +19,7 @@
  * this source code distribution or the Licensing information page available
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
+/*global console*/
 
 define(['./Type'], function (Type) {
     /**
@@ -52,9 +53,30 @@ define(['./Type'], function (Type) {
      * @memberof module:openmct.TypeRegistry#
      */
     TypeRegistry.prototype.addType = function (typeKey, typeDef) {
+        this.standardizeType(typeDef);
         this.types[typeKey] = new Type(typeDef);
     };
 
+    /**
+     * Takes a typeDef, standardizes it, and logs warnings about unsupported
+     * usage.
+     * @private
+     */
+    TypeRegistry.prototype.standardizeType = function (typeDef) {
+        if (typeDef.label) {
+            console.warn(
+                'DEPRECIATION WARNING typeDef: ' + typeDef.label + '.  ' +
+                '`label` is depreciated in type definitions.  Please use ' +
+                '`name` instead.  This will cause errors in a future version ' +
+                'of Open MCT.  For more information, see ' +
+                'https://github.com/nasa/openmct/issues/1568');
+            if (!typeDef.name) {
+                typeDef.name = typeDef.label;
+            }
+            delete typeDef.label;
+        }
+    };
+
     /**
      * List keys for all registered types.
      * @method listKeys