Fixed Valentina.exe bug in command line mode.

Not all errors were correctly catched in comsole mode. This caused method
LoadPattern return successes where in reality was an error. Also this bug made
regression tests less useful.
(grafted from fbf1dfae06b21d88189d771f2b2e45eeb84a02ce)

--HG--
branch : develop

ChangeLog.txt

@@ -58,6 +58,7 @@
 - [#544] Error: Color Lines are black until touched.
 - [#543] Detail loses details.
 - [#548] Bug Detail tool. Case when seam allowance is wrong.
+- Called the main app in console mode doesn't show opening file error in some cases. 
 
 # Version 0.4.4 April 12, 2016
 - Updated measurement templates with all measurements. Added new template Aldrich/Women measurements.

src/app/valentina/mainwindow.cpp

@@ -3852,9 +3852,15 @@ bool MainWindow::LoadPattern(const QString &fileName, const QString& customMeasu
         ZoomFirstShow();
 
         ActionDraw(true);
-    }
+
         qApp->setOpeningPattern();// End opening file
         return true;
+    }
+    else
+    {
+        qApp->setOpeningPattern();// End opening file
+        return false;
+    }
 }
 
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