new feature: --list-sessions
chlog
fix python error when rendering a document finishes that had not yet the PDF displayed
new quickinsert spanners button for melisma/melismaEnd
restore cursor if magnifier is hidden
doc
doc
bail out looking for matching tokens when running of the screen
neater
auto-complete custom markup commands
fix errors
move tokens helper iterator to toplevel
also complete in lyricmode from inluded files
also find markup commands defined by simple assignments
of course
autocomplete user variables in score, book and bookpart
de upd
dont assume unknown markup commands have arguments
leave ParseUnset when a context property or a general lower case name is encountered
fix #96; accept stringnumbers in music, not only in chords (since Lily 2.16 this is valid syntax)