[LyX/master] Enable polyglossia for LuaTeX

[Juergen Spitzmueller]

commit edd37de8b4fe46ca26956f51de445818a5090f16
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Wed May 27 14:40:04 2015 +0200

    Enable polyglossia for LuaTeX

diff --git a/src/BufferParams.cpp b/src/BufferParams.cpp
index 044c5e3..269c74c 100644
--- a/src/BufferParams.cpp
+++ b/src/BufferParams.cpp
@@ -1356,7 +1356,8 @@ void BufferParams::validate(LaTeXFeatures & features) 
const
        }
 
        // some languages are only available via polyglossia
-       if (features.runparams().flavor == OutputParams::XETEX
+       if ((features.runparams().flavor == OutputParams::XETEX
+            || features.runparams().flavor == OutputParams::LUATEX)
            && (features.hasPolyglossiaExclusiveLanguages()
                || useNonTeXFonts))
                features.require("polyglossia");