[lltx] luaotfload update

[Patrick Gundlach]

Hi Khaled,

> I hacked up a quick type1 reader that used the existing opentype reader.
> Works fine except there is a small bug in the opentype reader which sets
> the units_per_em to 0 if it is not set.

can you give an example usage?
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\input luaotfload.sty

\font\myfont="file:dollr___.pfb" 
\myfont hello world

\bye
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fails here with

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\myfont world |
[1{/opt/texlive2011/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] )
(see the transcript file for additional information)<./dollr___.pfb
!LuaTeX error (file ./dollr___.pfb): Invalid font type
 ==> Fatal error occurred, no output PDF file produced!
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Patrick