Added Integration test for testing redirect to absolute URL, fixed nginxcontroller SERVICE_UP issue
Fixed typo
Fixes ServiceRestarter to not block event-listener thread

- Previously RestarterPolicy called entity.restart inside the
  event-listener thread. That caused all other events for that entity's
  subscriptions to be queued until that entity's single event handler
  thread was free again.
- Particularly bad if service-up is triggered by an event-subscription,
  so that never happens causing entity.restart to fail!
Fixes ServiceReplacer to not block event-listener thread
Merge pull request #1353 from Nakomis/fix/redirect-absolute-url

Added Integration test for testing redirect to absolute URL, fixed nginx controller SERVICE_UP issue
Merge pull request #1361 from aledsage/fix/ServiceRestarter-listenerThread

Fix ServiceRestarter and ServiceReplacer listener thread
Adds BashCommands.waitForPortFree
BashCommands.waitForPortFree: fix for centos
Incorporate #1358 comments: BashCommandsIntegrationTest