Doc-fr: updates programming-interface
Doc-fr: updates LM

 - common notation
 - fundamental
 - tutorial
 - tweaks
Web-fr: download and essay/engraving
Doc-fr: fix tutorial
Doc-fr: updates NR
Doc-fr: updates AU
Doc-fr: typo in EM
Doc-fr: update texidocs
Docs: updates translation-status
Update Version for 2.19 development
Rewind Documentation/changes.tely for 2.19 branch
Remove dots that overflow chords; issue 3179
Merge commit 'b9d3aec07415ad5e7ad024aa7d73e5c5bfabc82d' into translation

This is the last common commit between master and stable/2.18
Merge remote-tracking branch 'origin/translation' into master
Run scripts/auxiliar/makelsr.py