fixes #94 Throws a RouteNotFoundException is a match is found where t…

[bartmcleod]

Throws a RouteNotFoundException when a match is found where the matched locale from the prefix is different from that in the postfix.

[bartmcleod]

Do not merge this yet, there are two problems with the solution, that need to be addresses first:

1. If for a number of locales, the same path has been defined in the route, the first locale that matches wins and is not necessarily the same as the prefixed locale. It looks hard to solve, but possibly iterating over the route collection can solve this. It will need an extra unit test to say the least.
2. If people use code like generate('routename.nl') instead of generate('routename', ['_locale' => 'nl']) they will be in trouble. As far as I'm concerned, this is wrong usage, but a change list should warn for this.

[bartmcleod]

My latest commit fixes concern #1, but relies on a postfix inflector being used. The conditions for exact matching of configured routes should probably be delegated to the inflector. And oh, yeah, I still need to provide the test that confirms fixing concern #1.

[bartmcleod]

Now the tests are there and the logic has been moved to the inflector, where it belongs. Also, the infix introduced has been moved to a class constant.