logic: Moved all error handling logic into ErrorController (issue #577)

* Handle all error related messages in ErrorController
* Moved error filter state from Storage to ErrorController
* Moved all error related messages to type/error subdirectory
* Enable all errors shown by default
* Always show unfiltered error count in status bar and overview
* Fixed all errors shown again when changing error filter on errors for file

src/lib/component/controller/BookmarkController.cpp

@@ -302,6 +302,11 @@ void BookmarkController::handleMessage(MessageActivateBookmark* message)
 	activateBookmark(message->bookmark);
 }
 
+void BookmarkController::handleMessage(MessageActivateErrors* message)
+{
+	clear();
+}
+
 void BookmarkController::handleMessage(MessageActivateTokens* message)
 {
 	m_activeEdgeIds.clear();
@@ -352,11 +357,6 @@ void BookmarkController::handleMessage(MessageFinishedParsing* message)
 	update();
 }
 
-void BookmarkController::handleMessage(MessageShowErrors* message)
-{
-	clear();
-}
-
 std::vector<std::wstring> BookmarkController::getActiveTokenDisplayNames() const
 {
 	if (m_activeEdgeIds.size() > 0)