add jenkins dynamic job templates
fix bug in jenkins_dynamic.rake
another bug fixed in jenkins_dynamic.rake
another bug fix in jenkins_dynamic.rake
and another
fix bug in packaging.xml.erb
fix bug in packaging.xml.erb
bug fix on repo job naming
fixed bug in repo/downstream naming
makes build_date an instance variable

not necessarily a good thing..
fix
fix downstream bug
Remove @build_date and make it a @build variable

@build_date was a temporary workaround until we established a true instance
variable for the @build object. This commit replaces @build_date with
@build.build_date wherever we use it. This will also be important because we'll
use it when we trigger the dynamically created jobs with jenkins.

Signed-off-by: Moses Mendoza <moses@puppetlabs.com>