Made missing data files dialog less scary and added exception handling for esmreader

apps/launcher/datafilespage.cpp

@@ -222,7 +222,7 @@ void DataFilesPage::setupDataFiles()
 
         QMessageBox msgBox;
         msgBox.setWindowTitle("Error detecting Morrowind installation");
-        msgBox.setIcon(QMessageBox::Critical);
+        msgBox.setIcon(QMessageBox::Warning);
         msgBox.setStandardButtons(QMessageBox::Cancel);
         msgBox.setText(tr("<br><b>Could not find the Data Files location</b><br><br> \
         The directory containing the Data Files was not found.<br><br> \
@@ -279,6 +279,8 @@ void DataFilesPage::setupDataFiles()
     const Files::MultiDirCollection &esp = fileCollections.getCollection(".esp");
 
     for (Files::MultiDirCollection::TIter iter(esp.begin()); iter!=esp.end(); ++iter) {
+
+        try {
             ESMReader fileReader;
             QStringList availableMasters; // Will contain all found masters
 
@@ -346,6 +348,11 @@ void DataFilesPage::setupDataFiles()
                     currentItem->appendRow(child);
                 }
             }
+
+        } catch(std::runtime_error &e) {
+            // An error occurred while reading the .esp
+            continue;
+        }
     }
 
     readConfig();