#10029: fix lens detection for Sony ILCE bodies
Merge branch 'master' of https://github.com/darktable-org/darktable
[l10n] Swedish update
New Nikon D800 basecure computed with dt-curve-tool.

This new basecurve looks far better in the dark tones and closer to
the corresponding jpeg used during the process.
Fix comment, add message to do the purge in the database.
basecurve: add measured 6d curve
Set min for cache_size to 100 MB

This is however not enforced in the code, it's just used for the
preferences dialog!