Installing the ExpressionLanguage
Adding a wildcard replacement ability

This is needed because we'll create a project called "Foo", but then need
to refer to it immediately via its id
Adding a real get function, for things with spaces
Changes from 2 commit(s):

TutsHero: Merge branch '_tuts/rest-ep2/behat-basic-post-scenario' into '_tuts/rest-ep2/behat-clear-data-between-tests' as we walk forward through the steps

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TutsHero: Merge branch '_tuts/rest-ep2/behat-basic-post-scenario' into '_tuts/rest-ep2/behat-clear-data-between-tests' as we walk forward through the steps
Tuts: Updating steps on compile