Rename app.php.default -> app.default.php
Merge branch 'kamui-master' into master.

Move app.php.default to app.default.php. This helps editors and OS's do
the right thing with the default file.

Closes #8
Add travis.yml file.

While it doesn't do much, its better than nothing.
Fix fatal errors in bootstrapping.

CakePHP has recently changed to use PSR-4 autoloading, and had some
internal paths change. We need to reflect those here.
Use CakePHP's new PSR-4 autoloader.