Temp. exclude 3rd party cookbooks from testing.

Otherwise converge fails and we get lots of errors about missing cookbooks:

     Failure/Error: chef_run.converge 'dcm4chee::default'
     Chef::Exceptions::CookbookNotFound:
       Cookbook mysql not found. If you're loading mysql from another
       cookbook, make sure you configure the dependency in your metadata

This has to be fixed later...
Fix and refactor failing specs for jai-imageio lib.

The lib was changed before (from solaris to linux) without updating the specs.
Refactor specs for downloading and unpacking.
FC019: Access node attributes in a consistent manner
Remote files notify unpack commands (fix #1)
Include 3rd party cookbooks again.
Bump bugfix version.