hgignore -> gitignore

Signed-off-by: Joachim Hofer <jmhofer.github@johoop.de>
added comment headers

Signed-off-by: Joachim Hofer <jmhofer.github@johoop.de>
adapted readme to github

Signed-off-by: Joachim Hofer <jmhofer.github@johoop.de>
simplified publishTo

Signed-off-by: Joachim Hofer <jmhofer.github@johoop.de>
publishTo sbt 0.13-style

Signed-off-by: Joachim Hofer <jmhofer.github@johoop.de>