Jersey 2469

As UriBuilder spec defines, query parameters should be encoded using application/x-www-form-urlencoded rules (https://jax-rs-spec.java.net/nonav/2.0-SNAPSHOT/apidocs/javax/ws/rs/core/UriBuilder.html).

Changed UriComponent to conform to UriBuilder spec, making query parameter to be encoded correctly on three methods of UriBuilder (queryParam(...), replaceQueryParam(...), replaceQuery(...)).

Added new unit test to verify correct encoding of special characters, and adjust existent test to expect values encoded in query string. 

This set is expected to be encoded when used in query string: ! # $ & ' ( ) * + , / : ; = ? @ [ ];
 as defined in (http://en.wikipedia.org/wiki/Percent-encoding).

Check (https://java.net/jira/browse/JERSEY-2469 and https://java.net/projects/jersey/lists/users/archive/2014-04/message/13).
This is not what UriBuilder spec says. The application/x-www-form-urlencoded rules are only said to apply to query parameters, not the whole query string.