Use shell script so that LD_LIBRARY_PATH is set

The shell script named ./run-singlenode.sh in the Event Store package
should be used in preference to starting the ./singlenode application
directly - this ensures that LD_LIBRARY_PATH is set to include the
working directory, which allows linking to libv8, libjs1 et al.
Merge pull request #1 from jen20/master

Use shell script so that LD_LIBRARY_PATH is set