Version 2.7.0

• Support for @pname.ges and @pnum in MIDI output (@rettinghaus)
• Support for @xml:space in MusicXML import (@rettinghaus)
• Support for staffDef@lines.visible (@rettinghaus)
• Support for gliss (@rettinghaus)
• Improved bTrem handling (@rettinghaus)
• Improved trill support (@rettinghaus)
• Option for using encoded line breaks, but automatic page breaks (--breaks=line) (@earboxer)
• Support for trill@extender (@rettinghaus)
• Support for note@head.visible (@rettinghaus)
• Improved spacing with crossing voices (@rettinghaus)
• Complete beam refactoring
• Support for mSpace elements (@rettinghaus)
• Improved header in MusicXML import (@rettinghaus)
• Improved header generation with additional names (@earboxer)
• Fix tremolo beaming (@rettinghaus)