New version 6.0.0

IMPORTANT: PHP4 support has been removed starting from this version.

• An error condition in addHtmlLink() method was fixed (bug #799).
• Minor documentation changes.
• The method Rect() was fixed to print borders correctly.
• Adding back some files that were not properly committed on the latest release.
• Duplicated encoding maps was removed from tcpdf_font_data.php.
• Fixing bug on AddTTFFont().
• HTML/CSS font size conversion were improved.
• Bug related to SVG and EPS files on xobjects were fixed.
• Default font path was fixed.
• Return value of addTTFfont() method was fixed.
• A bug related to non-unicode mode was fixed.
• _getFIXED call on tcpdf_fonts.php was fixed.
• Fixed $uni_type call on tcpdf.php.
• Several TCPDF methods and vars were moved to new class files: tcpdf_static.php, tcpdf_colors.php, tcpdf_images.php, tcpdf_font_data.php, tcpdf_fonts.php.
• Files htmlcolors.php, spotcolors.php, unicode_data.php and ecodings_maps.php were removed.
• Barcode classes were renamed and new barcode examples were added.
• Class TCPDF_PARSER was improved.
• Image method was improved.
• objclone fuction was patched to support old imagick extensions.
• tcpdf_parser was improved to support Cross-Reference Streams and large streams.
• Datamatrix class was fixed (a debug echo was removed).
• Bug item #754 "PNG with alpha channel becomes gray scale" was fixed.
• Minor documentation fixes.