Add allegro window position & get cursor pos.
Get desktop size.
* Get the monitor size.
Platform::SetWindowMaximized.
* Don't have full window support on Allegro so this is an approximation of what should happen.
* Set window title. It is hidden, but might appear somewhere else.
Merge commit '61a44b0018fbbf241e969d06800599158cc54ce1'
Clamp: avoid bad practice.
* Not a good idea to allow 3 different types in the compare and C cast (ignoring all warnings) to one type. Too easy to accidentally cast between types.
Min/Max templated.
* Any reason these shouldn't be namespaced and have values type checked?
* Clamp made inline.
Merge pull request #37 from billyquith/master

More Allegro platform features.