4.0.0 - 2014.1.0 - Icehouse Release

Updated Modulefile and README.md for 4.0.0 release.

Change-Id: Id08419c22add23ff7494ca447d9b99e42a52173c
fix deprecated catalog driver

In Icehouse
keystone.catalog.backends.templated.TemplatedCatalog
is deprecated in favor of
keystone.catalog.backends.templated.Catalog

Change-Id: I2e026cb0361b6ceeae801d9b434188a71a12e23a
Merge "4.0.0 - 2014.1.0 - Icehouse Release"