minor patches
Changed stemming rules, added scales (alto/tenor)
added support for barlines
added support for barlines
VexFlow override for 8va treble clefs commented out
Merge branch 'master' of https://github.com/aerhard/MEItoVexFlow

Conflicts:
	meitovexflow.js
Merge pull request #8 from aerhard/master

Adaptions to new features in VexFlow, minor patches and additions