Make the meta modifier key work for global shortcuts on Linux. Fixes issue #329

3rdparty/qxt/meta-modifier.patch

@@ -0,0 +1,15 @@
+Index: qxtglobalshortcut_x11.cpp
+===================================================================
+--- qxtglobalshortcut_x11.cpp	(revision 1208)
++++ qxtglobalshortcut_x11.cpp	(working copy)
+@@ -74,8 +74,9 @@
+         native |= ControlMask;
+     if (modifiers & Qt::AltModifier)
+         native |= Mod1Mask;
++    if (modifiers & Qt::MetaModifier)
++        native |= Mod4Mask;
+     // TODO: resolve these?
+-    //if (modifiers & Qt::MetaModifier)
+     //if (modifiers & Qt::KeypadModifier)
+     //if (modifiers & Qt::GroupSwitchModifier)
+     return native;

3rdparty/qxt/qxtglobalshortcut_x11.cpp

@@ -74,8 +74,9 @@ quint32 QxtGlobalShortcutPrivate::nativeModifiers(Qt::KeyboardModifiers modifier
         native |= ControlMask;
     if (modifiers & Qt::AltModifier)
         native |= Mod1Mask;
+    if (modifiers & Qt::MetaModifier)
+        native |= Mod4Mask;
     // TODO: resolve these?
-    //if (modifiers & Qt::MetaModifier)
     //if (modifiers & Qt::KeypadModifier)
     //if (modifiers & Qt::GroupSwitchModifier)
     return native;