Lyx should be spelled "LyX".

[SVN r30522]

more/whos_using/using.qbk

@@ -396,13 +396,13 @@ parts of Boost including [@../../libs/any/index.html Any],
 Currently Boost and the Adobe Software Libraries are in use in around 30 Adobe products.
 ]
 
-[blurb [*Lyx Document Editor]\n\n
-[@http://www.lyx.org/ The Lyx Document Editor]
+[blurb [*LyX Document Editor]\n\n
+[@http://www.lyx.org/ The LyX Document Editor]
 is an advanced open source document processor that encourages an 
 approach to writing based on the structure of your documents, 
 not their appearance.  LyX produces high quality, professional output,
 using LaTeX, an industrial strength typesetting engine.\n\n
-Lyx uses many parts of Boost, including [@../../libs/array/index.html Array], 
+LyX uses many parts of Boost, including [@../../libs/array/index.html Array], 
 [@../../libs/bind/index.html Bind], [@../../libs/regex/index.html Regex], 
 [@../../libs/type_traits/index.html Type Traits], 
 [@../../libs/function/index.html Function],
@@ -798,3 +798,4 @@ structured.
 
 [endsect]
 
+