yelljs 0.3.0

• Merge pull request #1 from alejoreact/move-to-typescript 5abd377
• readme 692af60
• fixing the tests c935cd2
• removing unused dependencies e07d23a
• ignore dist folder 5a1c4a4
• Added typeScript 03787cf
• removed dist folder 48b4228

v0.2.2...v0.3.0