title: @RestResource( exported=false ) ignored
body: <p>as in title - my @RestResource(exported=false) is ignored on field. Spring data rest still want to make json from it, I would like to simply skip it for now, as changing rel in WorkflowEvent gave me nothing..</p>
  
  <pre><code> @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "submission")
  @OrderBy("date desc")
  @RestResource(exported = false)
  private List&lt;WorkflowEvent&gt; events = new ArrayList&lt;WorkflowEvent&gt;();
  </code></pre>
  
  <p>I get:</p>
  
  <pre><code>{"timestamp":1410850806347,"status":500,"error":"Internal Server Error","exception":"org.springframework.http.converter.HttpMessageNotWritableException","message":"Could not write JSON: Detected multiple association links with same relation type! Disambiguate association @javax.persistence.JoinColumn(insertable=true, unique=false, referencedColumnName=, columnDefinition=, name=submission_id, updatable=true, nullable=true, table=, foreignKey=@javax.persistence.ForeignKey(name=, value=CONSTRAINT, foreignKeyDefinition=)) @javax.persistence.ManyToOne(fetch=EAGER, cascade=[], optional=true, targetEntity=void) @org.springframework.data.rest.core.annotation.RestResource(description=@org.springframework.data.rest.core.annotation.Description(value=), path=, exported=false, rel=) private mypackage.MyClass mypackage.WorkflowEvent.myclass using @RestResource!; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Detected multiple association links with same relation*
  </code></pre>
  
  <p>ofcourse it works when I comment this field.</p>
  
  <p>My versions:</p>
  
  <pre><code>\- org.springframework.data:spring-data-rest-webmvc:jar:2.1.4.RELEASE:compile
  [INFO] |     \- org.springframework.data:spring-data-rest-core:jar:2.1.4.RELEASE:compile
  [INFO] |        +- org.springframework.hateoas:spring-hateoas:jar:0.16.0.RELEASE:compile
  </code></pre>