This change fixes the export of our FeynmanDiagrams.lyx example
files on the latest TeX Live 2016.
The IJMP(C|D).lyx examples compiled before the change but might as
well convert these instances of '\rm' also.
The changes were made with the help of the following command:
find ./ -iregex .*lyx -exec sed -i 's/\\rm /\\textrm /g' {} \;
and the resulting diff was confirmed manually.
This commit is consistent with 3cecd4d3.
Also MacOSX ReadMe files. Note that a few lib/doc files are
also "updated" because trailing spaces are removed, but their file
formats are the same because they were recently updated at 83672113.
I did "git checkout LFUNs.lyx" because this file is generated
automatically and has a special header.
- add a mandatory argument
- remove an optional argument that compiles, but would break the layout of the output completely (is also not documented nor explicitly defined)
- also add a safe guard for the lyx2lyx conversion routines