Rename style-clear in style-signature

src/commands/view/ComponentStyleClear.js

@@ -10,7 +10,7 @@ module.exports = {
 
     if (!len) {
       const rules = ed.CssComposer.getAll();
-      let toClear = target.get('style-clear');
+      let toClear = target.get('style-signature');
       toClear = isArray(toClear) ? toClear : [toClear];
 
       rules.forEach(rule => {

src/dom_components/model/Component.js

@@ -62,7 +62,7 @@ const avoidInline = em => em && em.getConfig('avoidInlineStyle');
  * will be hidden from the style manager. Default: `true`
  * @property {Array<String>} [stylable-require=[]] Indicate an array of style properties to show up which has been marked as `toRequire`. Default: `[]`
  * @property {Array<String>} [unstylable=[]] Indicate an array of style properties which should be hidden from the style manager. Default: `[]`
- * @property {Array<String>} [style-clear=''] This option comes handy when you need to remove component-specific rules. The editor will remove rules when there are no components, of that type, in the canvas. Eg. '['.navbar', '[navbar-']'. Default: `''`
+ * @property {Array<String>} [style-signature=''] This option comes handy when you need to remove or export strictly component-specific rules. Be default, if this option is not empty, the editor will remove rules when there are no components, of that type, in the canvas. Eg. '['.navbar', '[navbar-']'. Default: `''`
  * @property {Boolean} [highlightable=true] It can be highlighted with 'dotted' borders if true. Default: `true`
  * @property {Boolean} [copyable=true] True if it's possible to clone the component. Default: `true`
  * @property {Boolean} [resizable=false] Indicates if it's possible to resize the component. It's also possible to pass an object as [options for the Resizer](https://github.com/artf/grapesjs/blob/master/src/utils/Resizer.js). Default: `false`
@@ -95,7 +95,7 @@ const Component = Backbone.Model.extend(Styleable).extend(
       badgable: true,
       stylable: true,
       'stylable-require': '',
-      'style-clear': '',
+      'style-signature': '',
       unstylable: '',
       highlightable: true,
       copyable: true,

src/dom_components/view/ComponentsView.js

@@ -19,7 +19,7 @@ module.exports = Backbone.View.extend({
     const children = view.childrenView;
     children && children.stopListening();
     if (em) {
-      removed.get('style-clear') &&
+      removed.get('style-signature') &&
         em
           .get('Commands')
           .run('core:component-style-clear', { target: removed });