Temperature iop: show enable button
Temperature iop: disable piece if preset == passthrough
Temperature iop: remove preset 'passthrough`
Update French translation.
Invert IOP: (non-mosaiced) unbreak OpenCL kernel
FC(row, col), not any other way!
Sync OpenCL kernels of invert, temperature with latest FC(j,i) changes
Merge pull request #624 from LebedevRI/iop-temperature-show-enable-button

Iop temperature show enable button
Overexposed IOP: disable piece unless it is really needed

This fixes longstanding FIXME, and reduces time DT_DEV_PIXELPIPE_FULL of by: (overexposed was not enabled)
[dev_pixelpipe] took 0.005 secs (0.004 CPU) processing `overexposed' on GPU, blending on GPU [full]
[dev_pixelpipe] took 0.004 secs (0.008 CPU) processing `overexposed' on CPU, blending on CPU [full]
Fix typo in French translation.
Ignore KDevelop project files

E.g.: .kdev4/ and darktable.kdev4
Italian translation updated
imageio: hard block extentions handled by rawspeed again

most if not all cameras should work now, the only exception
being missing panasonic aspect ratio's, which should be easy
enough to quickly add.
imageio: _blacklisted_ext now protects libraw from xtrans rafs
Merge pull request #633 from bartokk/master

Italian translation updated