title: Error with using parameters of RestCypherQueryEngine
body: <p>I use neo4j-rest-binding API to develop, but I face a problem when using parameters of RestCypherQueryEngine.</p>
  
  <pre><code>QueryResult&lt;Map&lt;String,Object&gt;&gt; result = engine.query("MATCH (n:{label}) RETURN n", MapUtil.map("label", label));
  </code></pre>
  
  <p>label is the parameter I assign in the map structure, but it has an error:</p>
  
  <pre><code>org.neo4j.rest.graphdb.RestResultException: Invalid input '{': expected whitespace or an identifier (line 1, column 10)
  "MATCH (n:{label}) RETURN n"
            ^ at
  SyntaxException
     org.neo4j.cypher.internal.compiler.v2_0.parser.CypherParser$$anonfun$parse$1.apply(CypherParser.scala:51)
     org.neo4j.cypher.internal.compiler.v2_0.parser.CypherParser$$anonfun$parse$1.apply(CypherParser.scala:41)
  ...
  </code></pre>
  
  <p>I can use another method to solve this problem:</p>
  
  <pre><code>QueryResult&lt;Map&lt;String,Object&gt;&gt; result = engine.query("MATCH (n:" + label +") RETURN n", null);
  </code></pre>
  
  <p>But I think the above method is not appropriate when I want to pass multiple parameters.</p>