Merge branch 'state-ipaddresses' into subnet-picknewaddress
Outline method
dottedQuadToNum plus description of new address algorithm
Start PickNewAddress algorithm
Extend pick algorithm
Complete PickNewAddress
Comment change
Comment addition
Tests now passing again.
Merge remote-tracking branch 'refs/remotes/origin/master' into leadership-integration-tests

Conflicts:
	cmd/jujud/agent/agent.go
	cmd/jujud/machine_test.go
Version detection for CentOS 7

* Detect when runing on CentOS 7
* This commit also makes all tests pass on CentOS
Merge branch 'master' into subnet-picknewaddress
Use ScopeUnknown for new address
Initial test and typo fix
Test extension
New test and fix
Test and critical fix
Test simplification
Import re-ordering
Error message tweaks