#160 - Fixed UriTemplate.expand(…) method declaration.

UriTemplate.expand(Map) not takes a Map<String, ? extends Object> to make sure Link.expand(Map) binds to the correct method. Previously it was bound to the method overload taking an Object vararg which caused an invalid expansion.
#134 - Fixed initialization of HttpMessageConverters for HAL.

The Jackson(2)ModuleRegisteringBeanPostProcessor now uses postProcess*Before*Initialization to make sure, afterPropertiesSet() has not been called on the target components which might have propagated the original HttpMessageConverters into other internal components.

With this fix, adding the HttpMessageConverter for HAL is added before the call and thus will be propagated to downstream components.