And update makedepends to make namcap a little bit happier

archlinux/devtools!109 (comment 74475)

See: FS#64139

The new patch incorporates the absolute path, so the sed command in package() is no longer needed.

Also change the maintainer to myself.

FTR, commands used to change arch=() and then verify the changes:

$ sed -Ei "/^arch=/{s/ *?['\"]?i686['\"]? *?//;s/ *$//}" */*/PKGBUILD*

$ grep -r i686 * | grep arch= | grep -v repos

$ svn diff | grep -A 1 ^-[^-] | grep -v -- -- | cut -c2- |
  while IFS=$'\n' read -r l1; IFS=$'\n' read -r l2; do
    echo "$l1 -> $l2"
  done | sort -u

Remove GNOME/Openbox session, because GNOME Panel is no longer available in the official repositories

- Readd gnome-panel-control binary, it's still works well with
gnome-panel
- Add more optional dependencies

- remove pointless .install file

Bug is reported on Openbox bugtracker[1].

[1] https://bugzilla.icculus.org/show_bug.cgi?id=5277