fix(context matching): Use RFC 3986 path (excludes query parameters)

[chimurai]

fixes #86

RFC 3986 path is used for context matching. Query parameters are ignored.

This also aligns with Express http://expressjs.com/en/guide/routing.html

Query strings are not part of the route path.

[coveralls]

Coverage remained the same at 99.367% when pulling 0ec0e6f on correct-wildcard-matching into 09926cd on master.

[coveralls]

Coverage remained the same at 99.367% when pulling b942ac4 on correct-wildcard-matching into 09926cd on master.

[coveralls]

Coverage remained the same at 99.367% when pulling dae53d9 on correct-wildcard-matching into 09926cd on master.

[coveralls]

Coverage remained the same at 99.367% when pulling dae53d9 on correct-wildcard-matching into 09926cd on master.