Announcement: libgphoto2 2.5.19 release

Hi!

I have just released libgphoto2 2.5.19!

It features a bugfix for new EOS cameras, where the OLC handling code could
cause incorrect aperture, iso or similar values.

From Elijahs Parkers timelapse fork of the ptp2 driver I merged back and
cleaned up the Fuji Liveview code, the Olympus OMD Capture and Liveview
support and the Panasonic GH5 capture and liveview support.


For the Fujis I loaned a Fuji X-Pro2 from my colleague Stefan and an XT-2 from
my colleague Marcus aka "darix" during the SUSE Hackweek (our regular one week of
innovation time).

I also rented a Olympus OM E-M5 Mark2 and a Panasonic GH5 from a local
store and reviewed, cleaned up and improved their functionality.

Special thanks to Elijah for doing this reverse engineering work and of
course to all other testers and users and contributors!

Ciao, Marcus

---- full new ---- 
libgphoto2 2.5.19 release

ptp2:
* Canon EOS: handle OLC versions of newer models, which gave incorrect aperture/shutterspeed values
* Fuji X series capture improvements.
* Fuji X series live view support added.
* Panasonic GH5 liveview and capture support. (Needs camera firmware 2.3 or newer)
* Olympus E-M5 Mark II and E-M1 Mark II liveview and capture support added.
* USB IDs added:
  * Sony Alpha A99 M2, A7 III, A9
  * Nikon Coolpix A900
  * Panasonic GH5
  * Olympus E-M1 Mark 2
  * Fuji X-H1, X-M1, X70, X30

all:
* various fixes for warnings from compilers and the coverity scanner

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