Fix for BUG 402: Subnet creation with NeutronAPIService sometimes fails
with a 409 error

Correct typo and bring hostRoutes out as own init block

Change-Id: I7f6f83cb6a63aa81a057b40c377ac49132a9fcb9
Signed-off-by: Ryan Moats <rmoats@us.ibm.com>
Merge "Fix for BUG 402: Subnet creation with NeutronAPIService sometimes fails with a 409 error"