Update readthedocs URL
Resolves https://github.com/striglia/pyramid_swagger/issues/13
Remove geocoder references

Simplifies the sample schema and removes all old references to the
geocoder schema this was based on. Should make for slightly clearer test
code.
Standardize trailing commas
Merge pull request #16 from striglia/validate_path_parameters

Validate path parameters (resolves https://github.com/striglia/pyramid_swagger/issues/13)