add interval brackets

This snippet provides brackets for semitones, tones and one and
a half tones for scales as used mostly for educational purposes.
add vertical-spacing shorthand

make the definition of vertical spacing easier
interval-brackets: change naming from scaleSettings to intervalBracketsOn
formatting
Merge pull request #21 from joram-berger/master

New snippets for interval brackets and vertical spacing
interval-brackets: Set status to "unfinished"

The snippet only works with upward scales, therefore
it should be labeled as unfinished
LilyJAZZ-README: Update to clarify licensing situation
add bravura font support
add first draft of bravura readme
bravura 0.7 support
consistent naming for bravura files
update bravura readme
add script to use smufl definition in lilypond
automatic code formatting

the original json file contains trailing whitespaces (untouched)
add header for bravura snippet
add smuflOff and bravuraOff commands
relative include for smufl
call it smufl because it is not bravura only
smufl: Small update of README
Merge pull request #1 from openlilylib/smufl

smufl: Small update of README