Added ARM support
Merge branch 'arm'

This branch adds initial ARM support.

Note that this is basically a copy-edit of the '# Linux' section, i.e.
Linux i386.

This merge accepts the pull request
https://github.com/maven-nar/nar-maven-plugin/pull/89.

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