2014-12-10 Version 4.0.0 Vincent Rogier vince.rogier@ocilib.net

    * Introducing new C++ API
    
      - Full C API ported to C++
      - Implemented as a small set of header files, no library compilation needed
      - Based on C++ and STL paradigms (Strong typing, templates, containers, RAII, exception handling, operators, stack objects)
      - Based on design patterns (RAII, delegation, reference counting, smart pointers, proxies, singleton)
      - No user dynamic object allocation required
      - The only dependences are : STL and OCILIB C API
      
    * Extended C API
    
      - Removed support for OCI_CHARSET_MIXED
         - This charset mode was introduced in early versions of OCILIB in order to support Unicode Data binding and fetching for Oracle8i that does not support full Unicode
         - It introduced high complexity in OCILIB code and had been source a bugs
         - This releases removes its support and now, OCILIB charset handling is much simplier
         - Thus OCILIB still support :
            - All Oracle versions : OCI_CHARSET_ANSI => ANSI/UTF8 strings (char* )
            - Oracle 9i and above : OCI_CHARSET_WIDE => UTF16/UTF32 strings (wchar_t *)
         
      - Added Support for some Oracle 12cR1 new features:      
          - Added support for "PL/SQL Implicit Results"          
              - No API changes, internal code updates
              - Added demo file          
          - Added Support for "Identity columns" :          
              - Added OCI_ColumnGetPropertyFlags()
          
      - Collections:          
          - Added OCI_CollDeleteElem()
          - Added OCI_CollGetCount()     
          - Added OCI_IterGetCurrent()
          - Fixed OCI_IterGetPrev() and OCI_IterGetNext() : Last error flag for OCI_GetLastError() was wrongly set if it returned FALSE 
          - Fixed OCI_ElemGetRaw() : possible segfault could happen
          - Fixed OCI_ElemSetNull() : it was not setting correctly the element indicator for collections of objects
          - Renamed some methods:
              - OCI_CollGetAt() to OCI_CollGetElem()
              - OCI_CollGetAt2() to OCI_CollGetElem2()
              - OCI_CollSetAt() to OCI_CollSetElem().
              - Note that older method names are still supported using #define for backward compatibility reasons 

      - Connection/Session Pools:
          - Fixed OCI_PoolGetConnection() that could return NULL connection handles (particularly when program is using OCI_PoolGetOpenedCount())
          - Removed connection pooling emulation for Oracle 8i
          - Refactored Oracle pooling implementation (code is now simpler and much more robust)

      - Unicode builds:  
          - Fixed LONG data type fetching when using Unicode builds on Unix/Linux platforms. Returned strings could have extraneous trailing characters
          - Fixed Buffer overwrite in OCI_LobRead2() in Unicode builds
          
      - Strings conversions:      
          - Added OCI_ObjectToText()
          - Added OCI_CollToText()
          - Extended OCI_GetString() : supports now all types
          - Extended OCI_ObjectGetString() : supports now all types
          
      - Miscellaneous additions:
          - Added OCI_IsRebindingAllowed()
          - Added OCI_TypeInfoGetConnection() 
          - Added OCI_SubscriptionGetConnection()
          - Added OCI_BindSetNotNullAtPos()
          - Added OCI_BindSetNotNull()
          - Added OCI_GetBindIndex()
		  - Added OCI_ObjectGetRawSize()
		  - Added OCI_ElemGetRawSize()
		  - Added OCI_LobGetConnection()
		  - Added OCI_FileGetConnection()
          - Added compile time (OCI_IMPORT_LINKAGE) and runtime (OCI_IMPORT_RUNTIME) detection of OCI shared library version for Oracle 12cR1
          - Added new error code OCI_ERR_ITEM_NOT_FOUND
          - Added VS 2013 solutions
          - Important code refactoring

     - Miscellaneous fixes:
          - Fixed OCI_ObjectGetObject() that could cause segfault when an object had 2 members of object type on a row
          - Fixed OCI_IntervalAdd() and OCI_IntervalSubstract() that were not performing OCI calls due to wrong return code initialization
          - Fixed NULL lob handle input checking in OCI_LobWrite() and OCI_LobWrite2()
          - Fixed OCI_PoolGetConnection() prototype : added const qualifier on tag argument
          - Fixed memory usage of internal arrays (for numeric, text and raw types) when using OCI_BAM_INTERNAL bind allocation mode. Memory was not freed when the statement was freed but only at OCI_Cleanup() time.
          - Fixed segfault in OCI_HashCreate() if internal memory allocation failed
          - SQL warnings occurring in OCI_ExecuteXXX() calls were not propagated correctly to the global error handler and couldn't be retrieved with OCI_GetLastError() in OCI_ENV_CONTEXT mode
          - Fixed runtime (OCI_IMPORT_RUNTIME) detection of OCI shared library version for Oracle 11gR2 that was reported as OCI 11gR1
          - Fixed segfault if a statement was executing more than once SQL statement with a "returning clause" (since statement cache support). It was due to an nice bug in the OCI client ! 
          - Fixed OCI_BindSetNull() : if called prior executing an insert statement that had OCI_Object handles binded to it, objects content were inserted in the DB instead of NUL
          - Fixed OCI_TimestampGetTimeZoneOffset() : returned offsets may have unattended values if negative
          - Fixed OCI_TypeInfoGet() that was failing if :
              - object had been created with case sensitivity (e.g. using quotes)
              - object were related to the PUBLIC role