Simplify build.sbt (use 0.13 syntax)
Introduce Context.freshName, get a rid of uniqueNameCounter var
Merge pull request #1 from mkubala/add-context-freshName

Introduce Context.freshName, get a rid of 'uniqueNameCounter' var
Update README.md
Bump version to 0.2
Start 0.3-SNAPSHOT
Update README.md