Export only needed specialization of

Value::get<>()

Change-Id: Ibe49f7d958282b2ad70b7712965a52634c542436

Author: silvakid

devapi/document.cc

@@ -52,7 +52,6 @@ using std::endl;
 
 
 template <>
-PUBLIC_API
 common::Value Value::get<common::Value>() const {
   if (getType() == DOCUMENT) {
     return common::Value::Access::mk_json(m_doc.get_json());

include/mysqlx/devapi/document.h

@@ -392,7 +392,6 @@ class Value
 
 
   template<typename T>
-  PUBLIC_API
   T get() const;
 
   //@}
@@ -740,6 +739,9 @@ try
 {}
 CATCH_AND_WRAP
 
+template <>
+PUBLIC_API common::Value Value::get<common::Value>() const;
+
 template<>
 inline
 int Value::get<int>() const