- Significant `imagedata` improvement: almost all the attributes (align, valign, depth, width, scale, scalefit, contentdepth, contentwidth) are correctly managed. However percentage used for both contentdepth and contentwidth is not managed (only contentwidth percentage is then applied).

- Dblatex tries to automatically detect the image file formats of the included graphics, and convert them if necessary (and if possible) to be compatible with the TeX backend driver. It is usefull when several image formats are used within the same document, in which case the `-f fig_format` cannot be used.

- The dblatex option `-P param=value` is added. One can then set XSL parameter values directly from the command line. This is an alternative to the `-p custom.xsl` option.

- The `align` attribute is now managed for table cells spanned on several columns (i.e. row entries with `nameend` or `spanname` attributes).