French translation update

Signed-off-by: Francis Tisserant <tissf@free.fr>
French doc update: fix float value with old data

Signed-off-by: Francis Tisserant <tissf@free.fr>
pncconf -fix error with firmware with more then 5 sserial channels

Pncconf can only display 5 channels but the code checked for 8
in certain circumstances.
Docs: fix startup code example.
g1 without a feed rate is an error and is a bad example for the startup code
thanks to archivist for spotting this
Signed-off-by: John Thornton <jthornton@gnipsel.com>
fix hm2 5i22 sample configs

All 4 of these sample configs referred to firmware files that changed
names a long, long time ago.

This commit changes the .ini files to use the new firmware names.
docs: remove some broken asciidoc markup

(Variables) looks like an typoed attempt at creating an asciidoc anchor,
but it's not valid asciidoc anchor syntax so it doesnt work, and it
passes through into the generated docs, where it makes no sense.

None of the other asciidocs tries to use an anchor named Variables,
so just remove it.
configs: Note GPL license on files
scripts: Note GPL license on files
gscreen: Note GPL license on files
nml_intf: Note GPL license on files
pythonplugin: Note GPL license on files
rs274ngc: Note GPL license on files
sai: Note GPL license on files
task: Note GPL license on files
tests: Note GPL license on files
scripts: Note GPL license on files
gscreen: Note GPL license on files
rs274ngc: Note GPL license on files
interp_setup: Can't use shell comments in a C++ file
Update changelog & VERSION for 2.6.0