PDB-342 Use our own JDK repo for JDK 7 testing

Change our acceptance tests so that for Ubuntu 10.04 and Debian 6 we use our
own repository which contains a debian package for JDK 7.

This will allow us to retire the JDK 6 support and still provide testing for
those platforms.

Signed-off-by: Ken Barber <ken@bob.sh>
PDB-342 Fix order precedence issue with boolean logic for use_our_jdk test

The use_our_jdk variable was being set to true when it should have been false.
This was because the assignment operator = was taking priority over the 'and'
operator. Wrapping the entire 'and' clause in brackets seems to have solved
this.

Signed-off-by: Ken Barber <ken@bob.sh>
Merge pull request #851 from kbarber/ticket/1.6.x/PDB-342-add-make-jpkg-repo-for-old-deb-jdk7-testing

PDB-342 Use our own JDK repo for JDK 7 testing