Make flash messages module more version-agnostic
Multimethod dispatch on version
* Move ver_pick to utils.version module (and rename to just 'pick')
* Add version based dispatch to flash module as example
* Add copy of distutils' LooseVersion (except a new style class) for
  version dispatch
* Add a memoized decorator
* Supersedes #786
Add is_a dispatch for LooseVersion
* List new versions in cfme.versions
Switch from copypasta'd memoize to functools32's lru_cache
Merge branch 'master' into origin-pr-786

Conflicts:
	cfme/configure/about.py
	cfme/infrastructure/pxe.py
	cfme/services/catalogs/catalog.py
	cfme/web_ui/__init__.py
	cfme/web_ui/flash.py
	cfme/web_ui/tabstrip.py
Merge branch 'master' into origin-pr-786

Conflicts:
	cfme/fixtures/pytest_selenium.py
Fix bad merge conflict resolution
SNMP listener
Clean up code for provisioning
ProvisioningVm clean up
Make toolbar complain on disabled choices
Better table scan
accordion.tree use you must
I could not resist...
Merge pull request #784 from mfalesni/snmp_listener

SNMP listener
SOAP has some providers
Merge pull request #852 from mfalesni/soap_prov

SOAP has some providers
Merge pull request #851 from mfalesni/accordion-tree-use

Accordion tree use in Services
Merge pull request #850 from mfalesni/more-move-to

Better table scan
clone_domain script makes sure the tmp working dir exists on the appliance