CORD-562 Don't allow nodes with duplicate hostname

And update existing node if newly added node has the same hostname with
existing node.

Change-Id: Ifebbf4129df4f742e16b9a25be619dd90e0745ff
4 files changed
tree: 79c84c675a7e7872af7a8ea10e2973678d62a271
  1. app.xml
  2. features.xml
  3. pom.xml
  4. src/