Revert "release: remove stale translations and update release notes."

This reverts commit 2cfccfa.

Gentoo development ebuild doesn't make sense for a release

Another one ...

release: remove unfinished translations.

adobe_coeff: preliminary olympus e-p5 matrix

translations: throw away incomplete stuff for release.

translations qa: removed unfinished ones for release.

white balance: make it relative to daylight balance

assuming that has been created wrt CIE daylight.

the end result is somewhat similar to ufraw, numbers vary wildly
but in principle it's relative to something constant and not to
camera white balance anymore.

also removed second temperature slider.

adobe_coeff: Nikon Coolpix A same as D7000

darkroom: lock pixelpipes before destroying them.

should fix crashes/hangs when pressing spacebar like crazy.