--------------------------- * add support for DataMatrix barcode
3.5.51
--------------------------- * fix malloc(0) issue in \_rl_accel.c \_fp_str thanks to Hans-Peter Jansen <hpjurpla.net> openSUSE
3.5.50
--------------------------- * Add BM ExtGState option (suggestion by tjj021 github * Fix memory leak in \_renderPM.c
3.5.49
--------------------------- * ViewerPreferencesPDFDictionary add /Duplex as possibility * Doctemplate add support for all ViewerPreferencesPDFDictionary keys * fix bugs in USPS_4State; Barcode inherits from Flowable and object.
3.5.48
--------------------------- * bug fix for balanced column special case unsplittable half column
3.5.47
--------------------------- * try to limit table style cell ranges