Factored out the handling of tool exceptions into `handleException()` for easier re-use (#52)
Factored out the handling of tool exceptions into `handleException()` for easier re-use (#52)

jvasileff/ceylon-common,jvasileff/ceylon-common,ceylon/ceylon-common,ceylon/ceylon-common,jvasileff/ceylon-common,ceylon/ceylon-common