eclipse style fixed.
NarSystemMojo: avoid using Iterator in favor of foreach loop

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
NarSystemMojo: use native-lib-loader when it is a dependency

When the native-lib-loader (https://github.com/scijava/native-lib-loader,
a library for unpacking and loading native libraries conveniently) is
among the dependencies, we should make use of it.

The current version of native-lib-loader (2.0.2) unfortunately expects
the native library to be bundled in a non-standard place, hence we have
to copy the library there.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Add an integration test for the native-lib-loader support

The native-lib-loader library is an incredibly useful thing to have when
working with native libraries: it unpacks bundled native libraries and
loads them. To make sure that our support for that library is not broken,
here is an integration test, to be run by our faithful Joyce Jenkins.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Fix indentation of generated NarSystem class

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>