lua doc : repair the renaming functionnality
rawspeed: experimental SONY ILCA-77M2 support

blackpoint / whitepoint and matrix need to be verified using
a converted dng.
adobe_coeff: experimental NIKON D750 support
rawspeed: Nikon D750 experimental support

other modes may still need to be added when samples come available
lua : stack should be clean after initialization
lua : add an internal API to register new lua events
lua : make init early functions more proeminent
lua : reorganize events

events don't need to be in lua/events.c anyumore
so let's put them where they logically belong
lua : prevent double registration of events
lua : look for modules via registry, not hardwired dt.modules
lua : move various modules

dt.modules.lib => dt.gui.libs
dt.modules.view => dt.gui.views

format and storage are unchanged for the moment but will move eventually
demosaic: fix wrong logic on opencl use
Merge branch 'master' of https://github.com/darktable-org/darktable