Add support for building the WebP export module to CMake.
strdup locale to avoid use-after-free

To be sure you can use the returned string encoding the currently selected locale at a later time, you must make a copy of the string. It is not guaranteed that the returned pointer remains valid over time.
From https://www.gnu.org/software/libc/manual/html_node/Setting-the-Locale.html
Add WebP format module. Support lossy/lossless compression.  No XMP/ICC embedding as Exiv2 lacks support for WebP.
Shameless plug :-)
sony a850 noise profile
Merge pull request #322 from b3nj4m/master

sony a850 noise profile
gtk: fixed typo.
sraw: use correct pitch when loading buffer.
Get rid of the GList for gdk locking

This makes use of the __thread keyword. Let's see for whom this breaks.
rawspeed: update to svn r603
rawspeed: Canon EOS 50D whitepoint fixes
[webp] lowercase all strings
[webp] newline at end of file...
Merge pull request #323 from jinxos/webpexport

WebP support
usermanual: proofreading thanks to David Vincent-Jones

also: added cmake hint to find saxon6.jar location
wb_presets: Adding support for several Pentax cameras
wb_presets: Adding whitebalance presets for "Canon EOS-1D X" and "Canon EOS 70D"
Merge pull request #324 from tuxuser/pentax_wb

wb_presets: Adding support for several Pentax cameras
Merge pull request #325 from tuxuser/canon_wb

wb_presets: Adding whitebalance presets for "Canon EOS-1D X" and "EOS 70D"
usermanual: note that XMP tags in output files have some limitations