print 6.x-1.6

Changes since DRUPAL-6--1-5:

• Fix #435386 by rhys: accept recepient lists with consecutive separators (newlines or commas)
• Fix #437128 by florin: add some bottom padding to the corner link
• Fix #439314: use better pattern matching for TCPDF's paragraph replacement
• Fix #419296 by noelbush: ** Use wkhtmltopdf for PDF generation **
• Updated German translation by rastatt
• Fix #435578: for now, don't use build_mode as CCK is not ready for it yet
• Remove some dead code for an untested fix to #254863
• Fix #429054: decode html entities in image URLs passed to TCPDF
  Fix a notice with undefined node->type when printing system pages
• Use Drupal log for wkhtmltopdf errors
• Fix #440376 by rsantiag: add hooks before and after the email sending action
• Fix #283950: clean the output buffer to recover from any TCPDF warning/error
• Coder fixes
  Use node->printing to disable corner links until CCK supports the print build mode
• Use cyclical numbering for the X display instead of random
• Prevent PHP from blocking in the wkhtmltopdf code
• by Zoltan Balogh: Updated Hungarian translation
• Fix #385994: Printer-friendly pages do not inherit organic group membership from original page
• Improve wkhtmltopdf documentation, configuration and add a directory to place external libraries
• Fix #441770: Footer was placed at top of page in TCPDF => 4.6