Read maven repo credentials from repo.txt instead of JVM properties in order to user more than one authorized repo.

Signed-off-by: Marcel Soute <m.soute@gmail.com>

Read maven repo credentials from repo.txt instead of JVM properties in order to user more than one authorized repo.

Fallback to system properties for backwards compatibility

Signed-off-by: Marcel Soute <m.soute@gmail.com>