[Framework] No longer rely on the 'app' path being given in favour of directly specifying paths where necessary.
[Database] Added a Migration Interface.
[Console/Output] Changed the default style for the <info> tag
[Framework/Diagnostics] Added a JsonDisplayer.
[Framework/Diagnostics] Added the missing plain page displayer template (stolen from Laravel, for now)
[Framework/Diagnostics] Provide the full class name of the JsonDisplayer when instantiating it via the Provider.
-am