update to match cakephp/cakephp#5199
add a call to Router::defaultRouteClass

Partly to make sure that users know it exists and is possible
update comment to mention casing pitfalls
update fallbacks comment
correct doc blocks for consistency
Add locales path to default app config file.
Merge pull request #177 from cakephp/locale-paths

Add locales path to default app config file.
Update docblock and remove unneeded "use" statement.
Merge pull request #179 from ADmad/master

Update docblock and remove unneeded "use" statement.
don't restrict test classes to fixtures
Merge pull request #180 from cakephp/all-test-classes

don't restrict test classes to fixtures
Correct indentation.
Merge pull request #176 from cakephp/fallback-routes-class

Update routes usage for fallbacks
Use composer instead of PEAR to get codesniffer.
Use travis' newer infrastructure.
Try using realpath.
Don't global install.
Merge pull request #184 from cakephp/codesniffer

Use composer instead of PEAR to get codesniffer
Update error400 and error500 error pages to use new layout.

Use the new layout in CakePHP core for the 'dev' version of error pages.
add interactive prompt for folder permissions in composer postInstall