Update bluez to 5.50
Remove Nicolas Thill as maintainer since he hasn't replied to numerous of
reviews requests for several packages within months.
Drop obsolete configuration file
Add patch for LE devices

Source: https://git.archlinux.org/svntogit/packages.git/plain/trunk/refresh_adv_manager_for_non-LE_devices.diff?h=packages/bluez

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>