CodeTracking 0.2.1

• Add some convenience methods for line number correction (#8)
• Relax Julia version requirement (#9)

CodeTracking 0.2.0

• use a single signature-dict and switch to LineNumberNode
• improvements to printing
• small reorganization of files
• don't export PkgFiles (breaking change)
• support :compact in printing

Initial release

Merge pull request #2 from timholy/teh/definition

Implement an initial API