Java 7u67 release
Make prepare.sh abort on first error.

The script shouldn't be able to continue with a missing command or a
failure to download Oracle JDK.
Merge pull request #19 from vincentbernat/fix/prepare-set-e

Make prepare.sh abort on first error.
Fix libodbc symlinks and bump standards to 3.9.6

Closes #20
Fix lintian overrides on i386
Java 7u71 release
Java 7u72 release
work around JDK-8012351/LP 937200