mod_alias should be loaded when redirectmatch_* parameters are used

Affects version: puppetlabs/apache 1.10.0 (couldn't find it in the drop down)

When redirectmatch_* parameters are used, the redirect fragment is included which uses the RedirectMatch command.

RedirectMatch is part of mod_alias, but the alias module is not loaded.

This bug tracks the inclusion of the alias module when the redirectmatch parameters are used.