- Added documentation for xmllint command. ...

- Added sed call to add "automatically generated" to derived XML files.

- Removed workarounds for Inkscape export issuse, as these now appear to ...

have been fixed.

- Fixed half-broken pdfcrop rules.

- Altered pdfcrop rules slightly. ...

- Added general rule for R -> PDF.

- Added a blurred version of the watermark rule, and made both versions ...

consistent.

- Added rule for generating blurred slide background images.

- Added rules for PNG from PNG (via renaming). ...

- Added rule for zoomed (144dpi) PNG from SVG.
- Added workaround for Inkscape PNG export bug.

- Removed --export-text-to-path option, as it's no longer required (or ...

even desirable) with Inkscape 0.47.

- Removed obsolete OmniGraffle rules.

- Fixed output location of exports from Inkscape (was current location, now ...

IMGDIR).

- Extended targets of various rules. ...

- Added pdfcrop to SVG processing chain (experimental).

- Added new makefile infrastructure for general documents. ...

- Created include files for various "standard" items (paths, rules, etc.).
  These will ultimately be used by all the other make include files in
  order to promote standardisation and consistency.
- Removed obsolete Perl script for handling document includes.