Fix nbsp C++.

localization/rssguard_en.ts

@@ -3572,10 +3572,6 @@ Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggreg
 
 At least API level %1 is required.</translation>
     </message>
-    <message>
-        <source>Standard online feeds (RSS/RDF/ATOM)</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>This service offers integration with standard online RSS/RDF/ATOM feeds and podcasts.</source>
         <translation type="unfinished"></translation>
@@ -3615,6 +3611,10 @@ version by clicking this popup notification.</source>
         <source>Cannot insert message filter, because current database cannot return last inserted row ID.</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Standard online feeds (RSS/ATOM/JSON)</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RecycleBin</name>

resources/docs/Documentation.md

@@ -116,8 +116,19 @@ RSS Guard is modular application which supports plugins. It offers well-maintain
 
 All plugins share almost all core RSS Guard's features, including labels, recycle bins or newspaper view. They are implemented in a very transparent way, making it easy to maintain them or add new ones.
 
+Usually, plugins have some exclusive functionality, for example Gmail plugin allows user to send e-mail messages. This extra functionality is always accessible via plugin's context menu and also via main menu.
+<img src="images/gmail-context-menu.png" width="80%">
+
 If there is interest in other plugins, you might write one yourself or if many people are interested then I might write it for you, even commercially if we make proper arrangements.
 
+### Features found exclusively in `standard RSS` plugin
+Standard plugin in RSS Guard offers some features which are specific to it. Of course it supports all news syndication formats which are nowadays used:
+* RSS 0.90, 0.91, 0.92, 1.0 (also know as *RDF*), 2.0.
+* ATOM 1.0,
+* [JSON](https://www.jsonfeed.org).
+
+Standard plugin offers some extra features like export/import of OPML 2.0 files or fetching feed metadata.
+
 ## Message filtering
 RSS Guard supports _automagic_ message filtering. The filtering system is automatically triggered when new messages for each feed are downloaded. User can write scripts which perform filtering decisions. [**JavaScript with ECMA standard**](http://www.ecma-international.org/publications/standards/Ecma-262.htm) is supported.
 

src/librssguard/core/feeddownloader.cpp

@@ -95,6 +95,10 @@ void FeedDownloader::updateOneFeed(Feed* feed) {
            << feed->customId() << "' URL: '" << feed->url() << "' title: '" << feed->title() << "' in thread: '"
            << QThread::currentThreadId() << "'. Operation took " << tmr.nsecsElapsed() / 1000 << " microseconds.";
 
+  msgs = QList<Message>::fromStdList(boolinq::from(msgs).where([](const Message& msg) {
+    return msg.m_title.contains("Essential PHP");
+  }).toStdList());
+
   // Now, sanitize messages (tweak encoding etc.).
   for (auto& msg : msgs) {
     msg.m_accountId = acc_id;

src/librssguard/core/message.cpp

@@ -78,7 +78,7 @@ void Message::sanitize() {
   m_title = m_title
 
             // Remove non-breaking spaces.
-            .replace(QRegularExpression(QSL("[\\u202F\\u00A0 ]")), QSL(" "))
+            .replace(QRegularExpression(QSL("[ \u202F\u00A0 ]")), QSL(" "))
 
             // Shrink consecutive whitespaces.
             .replace(QRegularExpression(QSL("[\\s]{2,}")), QSL(" "))

src/librssguard/services/standard/standardserviceentrypoint.cpp

@@ -12,7 +12,7 @@ bool StandardServiceEntryPoint::isSingleInstanceService() const {
 }
 
 QString StandardServiceEntryPoint::name() const {
-  return QObject::tr("Standard online feeds (RSS/RDF/ATOM)");
+  return QObject::tr("Standard online feeds (RSS/ATOM/JSON)");
 }
 
 QString StandardServiceEntryPoint::description() const {