Enabled rule org.eclipse.jdt.core.compiler.problem.unusedPrivateMember
Bug 455222 - Allow external config.ini file

https://bugs.eclipse.org/bugs/show_bug.cgi?id=455222

Added further possibility to add an external configuration file

Change-Id: I191ef25e03ca2510b082ac71758bf8a4ff583176
Signed-off-by: Rainer Niedermayr <rainer.niedermayr@bsiag.com>
Reviewed-on: https://git.eclipse.org/r/38247
Tested-by: Hudson CI
Reviewed-by: Judith Gull <jgu@bsiag.com>