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Merge branch 'master' of https://github.com/juju/juju into 141-names-refactor-part-x
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Merge branch 'master' of https://github.com/juju/juju into 141-names-refactor-part-x

Conflicts:
	state/apiserver/admin.go
	state/initialize_test.go
	state/state_test.go
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Merge branch '158-lets-have-less-copies-of-the-tagged-authenticator-interface' into 141-names-refactor-part-x
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fixed apiserver/common tests
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Added tests for hookCommand
Slight changes based on feedback

* defer restorer()
* slight change to error message checking
Add windows userdata support

* refactor cloudinit packages to include support for windows userdata
* fix NewMachineConfig to store corect paths when on windows
Added tests for windows userdata
Changes made based of feedback
Add windows userdata support

* refactor cloudinit packages to include support for windows userdata
* fix NewMachineConfig to store corect paths when on windows