v0.2.0

Breaking change

• use vinylAst.apply(file) instead of file = new VinylAst(file)

Improvement

• isBuffer(), isSteam() and isNull() now don't cause code generation
• add tests
• update README

v0.1.1

• Update package.json and README.md
• Add .travis.yml

v0.1.0

Initial release