as usual, the new release comes with lots of new features:
- lens defect correction (lensfun)
- internationalization (russian and swedish translation)
- backup files for image editing history and tagging (.dt and .dttags) apart from database
- gconf preferences handling
- lighttable mode modules
- libraw 0.8.4 and low-level option interface from dt
- color filter-based monochrome conversion
- dt now reads _ICC_PROFILE atom from X server
- more sophisticated white balance
- core database layout prepared for tagging system (to come in 0.5)
- lots of bugfixes
- lots of gui tweaks and presets
