2018-02-21 Version 4.5.1 Vincent Rogier vince.rogier@ocilib.net

    * Changes (C API)

        - Updated driver information set by OCILIB since v3.1.0 (column CLIENT_DRIVER in V$SESSION_CONNECT_INFO)
            * it is now including OCILIB version (e.g. "OCILIB : x.y.z" instead of "OCILIB")
         - Extended OCI_SeTrace() and OCI_GetTrace():
            * Added OCI_TRC_OPERATION: Name of the database operation set by the client application to be monitored (according Oracle docs)
            * This value is stored the database in the column DBOP_NAME of the system view V$SQLMONITOR
            * OCI_GetTrace() returns now NULL instead of an empty string if the given trace is not set or nullified
        - Release Windows binaries are now built using VS 2017 15.5.6 (instead of VS2017 15.3.2)

    * Fixes (C API)
    
		- Driver information (introduced in Oracle 11gR1: was set by OCILIB if
			- Oracle version >= 11gR1 for standalone connections and connections retrieved from connection pools
			- Oracle version >= 11gR2 for connections retrieved from session pools
			- Now it sets it correctly in all cases when Oracle version >= 11gR1 
		- Issue #141: OCIBindRaw() now accepts empty buffers (non null data with size = 0)
        - Issue #142: OCI_GetStruct() was filling numeric fields with garbage values since v4.5.0
        - Issue #143: OCI_SetTrace(): passing NULL values for clearing trace information leads to segfaults
        - Issue #144: OCI_SetTrace(); If called at least once, it was causing small memory leak in OCI_ConnectionFree()
        - Issue #145: Using OCI_BAM_INTERNAL for types using handles was leading to segfault when executing the statement
            * Impacted types:OCI_Object, OCI_Lob, OCI_File, OCI_Timestamp, OCI_Interval, OCI_Ref and OCI_Collection
        
    * Fixes (C++ API)
    
        - Issue #141: ocilib::Statement::Bind<ocilib::Raw, unsigned int>() accepts now empty ocilib::Raw

    * Miscellaneous:

        - OCILIB requires now C99 to be activated for compiling:
            * When using autotools (Unixes): Enforcing C99 compiler flags using AC_PROG_CC_STDC() macro
            * When using Visual Studio: OCILIB cannot be compiled anymore with VS2010 and earlier versions (released binaries use VS 2017)
			* This was motivated for using variadic macros and allow variable declarations not only at beginning of blocks
        - Addressed static code analysis hints and warnings
        - Internal code refactoring and factorization
        - Reduced cyclomatic complexity of some internal functions
            * Some methods (connection logon/logoff, bindings) were far too long and had been decomposed and split in smaller ones
       - Fixed demo an script files