Extract version number out of package file.
Formatted imports.
Display help when no file given.
Set new version.
Annotate strings at start of each bar with note.
Fix bug in computation of string version of note.
Make sure strings start always at same horizontal position.
Extract code for actually converting midi into tab into separate class.
Extract code for creating midi from raw content into method.
Format imports.
Provide rendering options as plain object instead of parameter.
Remove `separator` option.

For now simply always insert a rest after each imported note.
Bump version.
Merge branch 'master' of github.com:roelvanduijnhoven/tabify