fixed FormHelper to allow create() on Mock Models without errors
Cannot use php 5.4+ array syntax for 2.x.
Merge pull request #3397 from steinkel/fix-formhelper-with-model-mock

fixed FormHelper to allow create() on Mock Models without errors
Add additional test for f23d811ff59c50ef278e98bb75f4ec1e7e54a5b3

I neglected to put a negative test to ensure validatePost fails when the
URL differs.
Merge branch 'master' into 2.5
Update version number to 2.5.0-RC2
Merge branch '2.5' into 2.6

Conflicts:
	lib/Cake/VERSION.txt