Downgraded Guava to 13.0.1 so that it's possible to deploy apps that use Kundera into Java EE 7 containers, such as Glassfish 4. See https://code.google.com/p/guava-libraries/issues/detail?id=1433

Signed-off-by: Paulo Pires <pjpires@gmail.com>
Merge pull request #409 from pires/trunk

Downgraded Guava to 13.0.1 because of issues with Java EE 7 containers
[PATCH] use org.sonatype.nosql groupId for patched artifact
[PATCH] remove dependency on artifacts from non-central repo
[PATCH] implement Query.getSingleResult
[PATCH] fix Enum handling
[PATCH] fix kundera-cassandra tests under Maven