Create ChmodBPF installer and uninstaller packages using pkgbuild and
productbuild. Place them in Wireshark.app/Resources/Extras.

Add a path_helper installer and uninstaller which respectively add and
remove /etc/*paths.d/Wireshark.

Remove the PackageMaker and utility-launcher assets and build targets.

Show a message in the main welcome screen if we don't have capture
permissions. Add an link which launches the ChmodBPF installer.

Add a "macOS Extras" item to About → Folders.

Migrate "Read me first" from RTF to Asciidoctor, which lets us add links
and looks like our other documentation.

Rename dmg_set_style.scpt to arrange_dmg.applescript and make it plain
text. Always run it in osx-dmg.sh.

Bug: 6991
Bug: 12593
Bug: 11399
Ping-Bug: 16074
Change-Id: I7b6aa89aae2be522b4141b0d44e8142dec749e90
Reviewed-on: https://code.wireshark.org/review/31047


Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Gerald Combs <gerald@wireshark.org>