wxUSE_MS_HTML_HELP

[Robin Dunn]

Looks like the change to how wxUSE_MS_HTML_HELP is defined (or not) is 
causing some warnings:

../src/common/cshelp.cpp:37:5: warning: "wxUSE_MS_HTML_HELP" is not defined
../src/common/cshelp.cpp:386:5: warning: "wxUSE_MS_HTML_HELP" is not defined
../src/common/cshelp.cpp:392:5: warning: "wxUSE_MS_HTML_HELP" is not defined

-- 
Robin Dunn
Software Craftsman
http://wxPython.org  Java give you jitters?  Relax with wxPython!