Fix in SBTRunner (do not use Java 1.7 API).
Mark imports as used and don't remove them during optimize imports, when import used in ScalaDocs #SCL-7316 Fixed
Optimize imports should honor implicit parameters passed for expression as return statement for anonymous function with placeholder #SCL-7269 Fixed
Optimize imports should honor unicode arrow code style settings #SCL-7158 Fixed
Fixed all places to honor unicode arrow (=>) setting.