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.
In June the R-SS phrase system is replaced officially by the GHS H-P statement system in the EU.
So just in time here is support for this.
No new LaTeX package is required since the already supported package mhchem provides the statements.
