add ability to override router job templates

This is so that we can deploy the dropsonde agent to the router for instrumentation

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>
configure gorouter for dropsonde instrumentation

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>
Reverting a change to the gorouter ctl file that belongs to another commit set

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>
add ability to override releases

Signed-off-by: Johannes Tuchscherer <jtuchscherer@pivotallabs.com>
Merge pull request #396 from cloudfoundry/parameterize_gorouter_templates

Parameterize gorouter templates