Dependency update to DDC v1.9

Update v1.9 :
- New warning added in the log file if sections or phrases don't start
at the first beat of a measure.
- Fixed bug : Wrong value in "count" attribute of the "phraseIterations"
tag in specific cases.
- Fixed bug : "ChordNote" tag may be missing in lower levels of
difficulty for fret hand muted chords.
- Fixed bug : Process may stop when loading XML file informations if a
phrase is defined before the first section.