3.3.3
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* Use series link titles for series links
* Fixed facet link-handling, broken by HTML changes
* Style tweaks for mobile rendering
* Implemented new Conditionals extension
* Initial support for new ui:thumb extension
* Added customization stubs for Mallard linking
* Added support for DocBook bridgehead element
* Don't output empty About footer
* Changed mal2html.section.mode to named template
* Made copyright notices localizable (DocBook and Mallard)
* Strip query string from email address in tooltip
* Alignment fixed for DocBook synopfragment
* Fixed handling of DocBook biblioset
* Fixed handling of DocBook indexdiv
* Basic support for DocBook task element
* Support for DocBook package element
* Support for DocBook sidebar element
* Use common formatting for DocBook example and procedure
* Changed some XSLT key names and made public
* Set language attributes on HTML body
* Moved gettext stylesheet into common
* Updated translations:
 bg       (Alexander Shopov)
 da       (Ask H. Larsen)
 sr       (Мирослав Николић)
 sr@latin (Мирослав Николић)
 ug       (Gheyret Kenji)
 sv       (Daniel Nylander)
 ja       (Jiro Matsuzawa, Hideki Yamane)
 tr       (Muhammet Kara)
 ru       (Yuri Myasoedov)
 gl       (Fran Diéguez)
 be       (Ihar Hrachyshka)
 zh_HK    (Chao-Hsiung Liao)
 zh_TW    (Chao-Hsiung Liao)
 sl       (Matej Urbančič)
 nb       (Kjartan Maraas)
 he       (Yaron Shahrabani)
 es       (Daniel Mustieles)