Added alias_module

The module alias_module has been added to allow anticipated functions
which will redirect users using insecure http connections to more secure
https connections.
Added a redirection directive

Insecure http connections will now be redirected to a more secure url.
Merged the ports configuration into the main file

The ports configuration which was separated out into a separate file was
not necessary and was placed back into the main configuration file.
Changed listen on port 80 to accept non localhost

Connections. This should no longer reject external connections to port
80.
Changed from _default_ keyword

The _default_ keyword was removed from the VirtualHost listening on port
80 and replaced with an asterix. This should make things safer.
Changed from the _default_ keyword

The _default_ keyword has been replaced with a safer alternative.
Added separate virtualhost to separate server stat

information. Access to the server-status can now only be achieved
through localhost.
Added the status module

The status_module should allow status monitoring of the server.
Implemented group_vars

Group variables should allow variables to be assigned to variables and
reused in other places.
Fixed an issue where variables wrongly assigned

to the wrong virtualhosts.
Removed hardcoding of the url

Hardcoding was replaced with a variable name for greater flexibility.
Merge pull request #19 from ausaccessfed/feature/redirect-http

Added redirection to https and other minor related tweaks