Adding a C++ wrapper

Description:
    - Added a wrapper for H5Ovisit2 to class H5Object
        // Recursively visit elements reachable from this object.
        void visit(H5_index_t idx_type, H5_iter_order_t order,
                   visit_operator_t user_op, void *op_data, unsigned int fields);
    - Fixed various typos in documentation
Platforms tested:
    Linux/64 (jelly)
    Linux/64 (platypus)
    Darwin (osx1011test)

c++/src/H5LcreatProp.h

@@ -12,9 +12,6 @@
  * help@hdfgroup.org.                                                        *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-// Class LinkCreatPropList represents the HDF5 file access property list and
-// inherits from DataType.
-
 #ifndef __H5LinkCreatPropList_H
 #define __H5LinkCreatPropList_H
 
@@ -22,15 +19,15 @@ namespace H5 {
 
 /*! \class LinkCreatPropList
     \brief Class LinkCreatPropList inherits from PropList and provides
-    wrappers for the HDF5 file access property list.
+    wrappers for the HDF5 link creation property list.
 */
 // Inheritance: PropList -> IdComponent
 class H5_DLLCPP LinkCreatPropList : public PropList {
    public:
-        ///\brief Default file access property list.
+        ///\brief Default link creation property list.
         static const LinkCreatPropList& DEFAULT;
 
-        // Creates a file access property list.
+        // Creates a link creation property list.
         LinkCreatPropList();
 
         ///\brief Returns this class name.
@@ -39,7 +36,7 @@ class H5_DLLCPP LinkCreatPropList : public PropList {
         // Copy constructor: same as the original LinkCreatPropList.
         LinkCreatPropList(const LinkCreatPropList& original);
 
-        // Creates a copy of an existing file access property list
+        // Creates a copy of an existing link creation property list
         // using the property list id.
         LinkCreatPropList (const hid_t plist_id);