/*!  \page grib_convert grib_convert
\section DESCRIPTION 
 It converts grib messages applying the rules from a conversion_rules file.
	The rules are of the type "keyname = value;" and if blocks are allowed as
	if ( keyname1 == value1 || keyname2 != value2 && keyname3 == value3 ) {
	 keyname4 = value4;
	}

\section USAGE 
 grib_convert 
 [options] conversion_rules grib_file grib_file ... output_grib_file

\section OPTIONS 
-f  \n Force. Force the execution not to fail on error.
 \n \n -M  \n Multi-grib support off. Turn off support for multiple fields in single grib message
 \n \n -g  \n Copy GTS header. 
 \n \n -G  \n GRIBEX compatibility mode.
 \n \n -V  \n Version.
 \n \n -7  \n Does not fail when the message has wrong length
 \n \n -v  \n Verbose.
 \n \n 
\section grib_convert_examples grib_convert examples
The following grib_convert rules convert all the grib messages
contained in the input files in grib edition 2 and if a 2 metre
temperature is found also the keys contained in the culy bracket are
changed.\n
\code 
editionNumber = 2;
if( indicatorOfParameter == 11 && indicatorOfTypeOfLevel == 105)
{
    productDefinitionTemplateNumber = 1;
    typeOfFirstFixedSurface         = 103;
    scaleFactorOfFirstFixedSurface  = 0;
    scaledValueOfFirstFixedSurface  = 2;
}
\endcode

*/