fix uri detection, puts dots between toxcore versions

src/chatlog/chatmessage.cpp

@@ -179,8 +179,13 @@ QString ChatMessage::detectAnchors(const QString &str)
 {
     QString out = str;
 
-    // detect urls
-    QRegExp exp("(?:\\b)(www\\.|http[s]?:\\/\\/|ftp:\\/\\/|tox:\\/\\/|tox:)\\S+");
+    // detect URIs
+    QRegExp exp("("
+                "(?:\\b)(www\\.|http[s]?|ftp)://" // (protocol)://(printable - non-special character)
+                // http://ONEORMOREALHPA-DIGIT
+                "\\w+\\S+)" // any other character, lets domains and other
+                "|(^tox:[@\\w]+$)"); // starts with `tox` then : and only alpha-digits till the end
+                // also accepts tox:agilob@net as simplified TOX ID
     int offset = 0;
     while ((offset = exp.indexIn(out, offset)) != -1)
     {

src/widget/form/settings/aboutform.cpp

@@ -43,11 +43,11 @@ void AboutForm::replaceVersions()
     bodyUI->gitVersion->setText(bodyUI->gitVersion->text().replace("$GIT_VERSION", QString(GIT_VERSION)));
     bodyUI->toxCoreVersion->setText(
                 bodyUI->toxCoreVersion->text().replace("$TOXCOREVERSION",
-                                                       QString::number(TOX_VERSION_MAJOR) +
-                                                       QString::number(TOX_VERSION_MINOR) +
+                                                       QString::number(TOX_VERSION_MAJOR) + "." +
+                                                       QString::number(TOX_VERSION_MINOR) + "." +
                                                        QString::number(TOX_VERSION_PATCH)));
     //TODO show when toxcore supports versioning #2086
-    //bodyUI->toxCoreVersion->hide();
+    bodyUI->toxCoreVersion->hide();
 }
 
 AboutForm::~AboutForm()