More flexible path resolution with regards to path parameters

[kibertoad]

Currently validator will fail to resolve correct schema if request route is resolved as /users/:userId and specification has route /users/:user_id.

Since it is not really important for router variable names to match the ones in specification, we should compare path just on the basis of having variable there, ignoring its name completely.

[manwithsteelnerves]

@kibertoad Can you please confirm if this is resolved? I noticed still its dependent on the parameter name format.