Enhance 'build-appimage' script:
- add initial comment block and comments for all major steps in the
script for the benefit of casual users of the script
- 'configure' to build HTML + PDF documentation
- do not remove the man pages from the AppDir (will be used by custom
AppRun script)
- use a bigger icon
- use '-g' for appimagetool so it can figure out the 'updateinfo' string
on Travis CI
- output big fat warning to users who build AppImage in non-"Trusty"
environments
Add 'AppStream' metadata file
This serves to satisfy desktop environments who want to automatically
create menu entries, show screenshots and display software descriptions.
Note, this file (qpdf.appdata.xml) may need more tweaking since the
Freedesktop folks aren't exactly sure themselves how their 'standard'
should exactly look like, and they changed their validation tools
quite a bit over the recent years in incompatible ways...
Extended and enhanced customized AppRun script
- Add a '--ai-usage' invokation param to the AppImage which serves as
a starting point to explore the other embedded options
- Support displaying of manual pages by running AppImage with added
parameter '--man ...'
- Also include HTML/PDF documentation, READMEs and licenses into AppImage
- Support for more parameters: '--list-man', '--list-pdf', '--list-readme',
'--list-license', '--list-html', '--list-exe', '--pdf', '--readme',
'--license', '--html' and '--show-apprun'
- Support 'fix-pdf' and 'zlib-' as sub-commands (not just as symlinks)
