Fix typo and add a note about ResetsFont default

This was missing in 6b49b6b129a, and I did not find it because of the typo.
Thanks Uwe for reminding me.
Fix bug #8944 by introducing a maximum size for keys we process.
The problem is caused by the fact that Encodings::fromLaTeXCommand
is very slow. It's not clear to me if that can be fixed, or if that
is just how things are. Georg suggested another time that we might
use tex2lyx in or instead of convertLatexCommands() in BiblioInfo.cpp,
but I don't know if that would much faster. The author string in the
example file is 32K characters long. As long as some files tex2lyx
would convert.
Math.lyx: fix a package loading logic mistake
LFUNs.lyx improvements
again update FUNs.lyx
Improve autotools support for generating LFUNs.lyx

The tqrget now works properly when out of source directory qnd uses the $(PYTHON) variable. Also, the use of the error() function has been fixed in the gen_lfun.py script.
Rename some LFUN names to match their text name

Also, rename copy-label-as-reference to label-copy-as-reference and update LFUNs.lyx accordingly.
Fix various typos in LFUNs.lyx
Do not use enum names to describe lfuns in release notes

Also some ws changes.
Support (black) card suites in text mode (#8971)