1.0.3dev: Added `env` property to the `Environment` class so that the `cached` decorator can be used on properties of the class. Refs #11867.


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/1.0-stable@13476 af82e41b-90c4-0310-8c96-b1721e28e2e2