The bash completion stuff is crapping out on darwin. Disabling.
Let me know if I am doing something wrong.

Change-Id: I6f61f869140b26db0a119617b353e0952eeaebeb
envsetup: Mark zsh as compatible

Basic functionality has been tested on zsh 5.0.2 and has been found to
work correctly.

Change-Id: I02e5e3bedf56b43104c280d9737ae7b334357643

Conflicts:

	envsetup.sh
Use consistent search depth.

AndroidProducts.mk allows for a maxdepth of 4 in device and vendor while
vendorsetup.sh and BoardConfig.mk only allow for smaller depth.

Make search depth consistent for these files.

Change-Id: I406770c1423d4f27fe097956a7c705a0da937e35
Signed-off-by: Beare, Bruce J <bruce.j.beare@intel.com>
Signed-off-by: Laurent Fert <laurent.fert@intel.com>
Signed-off-by: Guilhem Imberton <guilhem.imberton@intel.com>
Author: Laurent Fert <laurent.fert@intel.com>

Conflicts:
	envsetup.sh
envsetup: do not print an error if complete fails

complete is a bashism; so it will fail on other shells. Avoid printing
an error if that is the case.

Change-Id: Id6d6311792f409cc3a697c7a2bb003863f1afe60
build: work around missing readlink -f on Mac

Change-Id: I5d56366cf33a2b02f1886c87815d00cff279779d
additional fixes for building in Darwin