Hygiene: reduce getPageActions() visibility

- Reduce MinervaTemplate.getPageActions() visibility from public to
  protected. No one seems to use it.

- Use camelCase instead of lowercase for the pageActionMenu.mustache
  template's pageActions variable. writingwithcaseindifference is
  difficult to read and the templates seem to support casing.

Change-Id: I6d283c7b97eeef6902cb010904748bd8c72b660c

includes/skins/MinervaTemplate.php

@@ -49,7 +49,7 @@ class MinervaTemplate extends BaseTemplate {
 	 * Returns available page actions
 	 * @return array
 	 */
-	public function getPageActions() {
+	protected function getPageActions() {
 		return $this->isFallbackEditor() ? [] : $this->data['page_actions'];
 	}
 
@@ -100,7 +100,7 @@ class MinervaTemplate extends BaseTemplate {
 		$html = '';
 
 		if ( $actions ) {
-			$html = $templateParser->processTemplate( 'pageActionMenu',  [ 'pageactions' => $actions ] );
+			$html = $templateParser->processTemplate( 'pageActionMenu',  [ 'pageActions' => $actions ] );
 		}
 		return $html;
 	}

includes/skins/pageActionMenu.mustache

@@ -1,11 +1,11 @@
 <nav class="page-actions-menu">
 	<ul id="page-actions" class="page-actions-menu__list">
-		{{#pageactions}}
+		{{#pageActions}}
 		<li id="{{item-id}}" class="page-actions-menu__list-item">
 			<a id="{{id}}" href="{{href}}" class="{{class}}" role="button" title="{{title}}">
 				{{text}}
 			</a>
 		</li>
-		{{/pageactions}}
+		{{/pageActions}}
 	</ul>
 </nav>