Update automated development build filenames

[Beep6581]

The automated build filenames for RawTherapee and HDRMerge will use this template:

hdrmerge_release-v0.6_continuous-67-g1f0b1a0_20190927.AppImage
________ ____________ ______________________ ________.________
  name      branch         git describe        date     ext

Releases will use:

hdrmerge_v0.6.AppImage
________ ____.________
  name   tag    ext

Fields separated by underscores, where a field is the output of a command such as git describe.

https://github.com/jcelaya/hdrmerge/releases/tag/nightly
https://github.com/Beep6581/RawTherapee/releases/tag/nightly

https://github.com/aferrero2707/hdrmerge-ci/blob/master/package-appimage.sh#L115
https://github.com/aferrero2707/rt-appimage/blob/master/ci/package-appimage.sh#L227
https://github.com/aferrero2707/rt-win64/blob/master/ci/package-msys2.sh#L37
https://github.com/aferrero2707/rt-win64/blob/master/ci/package-w64.sh#L37

https://github.com/aferrero2707/rt-win64/blob/master/.travis.yml
https://github.com/aferrero2707/rt-appimage/blob/master/.travis.yml

[aferrero2707]

What about the target operating system? This might be needed if for example we generate zip files for both Win64 and macOS, and the branch and build dates are the same.

[Beep6581]

@aferrero2707 no problem adding OS names when the need arises.

[Beep6581]

Fixed for AppImage, now for Windows.

[aferrero2707]

Thanks! Could you take care of the windows script as well, or should I do that?

[Beep6581]

@aferrero2707 as we're releasing this weekend and time's running short, if you could do the Windows script that would be great 👍

Development:

RawTherapee_branch_gitdescribe_date.exe
RawTherapee_branch_gitdescribe_date_win64.zip

Tagged release:

RawTherapee_gitdescribe.exe
RawTherapee_gitdescribe_win64.zip

So basically:

if [[ $RT_BRANCH = releases ]]; then
    ver="${GIT_DESCRIBE}"
else
    ver="${RT_BRANCH}_${GIT_DESCRIBE}_${curr_date}"
fi

and then append win64 for the zip file only.

[aferrero2707]

@Beep6581 I am taking care of the windows package naming right now...

[aferrero2707]

@Beep6581 @heckflosse windows names should be fine now. Could you check that the release packages also install in the appropriate folder?
https://github.com/Beep6581/RawTherapee/releases/download/nightly/RawTherapee_5.7.exe
https://github.com/Beep6581/RawTherapee/releases/download/nightly/RawTherapee_5.7_win64.zip

[Beep6581]

Thank you @aferrero2707