Changes from version 0.3 to 0.4
-------------------------------

* Exiv2 utility

	* Less rigid command line argument parsing: Guess the action from the 
          option given and use print as the default action.

	* Print Nikon makernote values for ISO Speed, Quality and WhiteBalance
          in the summary.

* Exiv2 library

	* Fixed ExifData::copyFromMetadata to automatically add missing
          offset tags. Thanks to Joseph Heled for identifying this bug.

	* Started to fix MSVC errors and warnings. Thanks to Steven R. King for
	  his work to get Exiv2 to compile on MSVC. The task is not yet 
	  completed but the library should compile without too many warnings.

	* Added three different Nikon makernote formats.

	* IfdMakerNote: Replaced too simple prefix with a more general concept 
          of a makernote header. 

	* Added the makernote buffer to the arguments passed to the makernote 
	  create function. This allows the makernote create function to 
          determine the exact makernote needed based on its content. The new 
          concept is used to automatically determine which of the three Nikon 
          makernotes to create.

	* Fixed MakerNoteFactory::match() to prefer an exact match over a 
          wildcard match with the same number of matching characters (Key 
          "Nikon" now prefers registry entry "Nikon" over "Nikon*"), simplified
          the return value of match() to an integer score value.

	* Sigma makernote: Added "FOVEON" and "*" to registry. 

	* Added len argument and boundary checks to various read functions,
	  in particular, the IFD read method. 

	* Improved handling of corrupt IFDs: Truncate field if offset points 
	  outside of the available buffer.

	* Slightly improved error handling: strError() is now a static member 
	  of ExifData.

	* Added exifcomment example program.

	* Fixed an embarassing bug in ExifData::updateEntries, which caused 
	  write after erasing metadata to write back the original metadata.

	* Fixed TypeInfoTable to return invalid if typeId is too large.

	* Makefile: (un)install targets now only (un)install exiv2.

	* Code cleanup, documentation updates and miscellaneous bug fixes.