camelCase route parameter so multi-word model binding works

[Rasmus-Bertell]

Changes multi-word url parameters from snake_case to camelCase so it matches the model name in array. Propably should handle the case changing in some other way, I'll look into it later.

I don't know how to write a test for this, so any help is welcome.

closes #669

[shalvah]

Sorry, haven't had a chance to try this and decide if it's what we actually want. Will probably not be able to check it out until end of the month, when I'm back from vacation.

[Rasmus-Bertell]

Sorry, haven't had a chance to try this and decide if it's what we actually want. Will probably not be able to check it out until end of the month, when I'm back from vacation.

I still need to figure out how to write the test case for this, it would demonstrate the issue better in my opinion.

[shalvah]

Maybe take a look at the existing tests. I can't recall off the top of my head, but there's a class where we test some different URL parameter matching scenarios.