d2-common: Update startup scripts, remove init.qcom.coex.sh, and lower camcorder volume

Squashed commit of the following:

commit a66c18add190b396c589c01c36626b048c533379
Author: David Daynard <nardholio@gmail.com>
Date:   Sat Aug 24 16:08:51 2013 -0400

    d2-common: update startup scripts for 4.3

    Patch set 2: rebased
    Patch set 3: added a missing bit, and reverted changes to dhcpd_bnep0
    that broke bt tethering

    Change-Id: I31efbc59be7faf0fde595e55f6647101ea392841

    Conflicts:
    	rootdir/etc/init.qcom.rc

commit 9d02f8790f9c61156a10f85370aa8f03f7c3b357
Author: David Daynard <nardholio@gmail.com>
Date:   Sat Aug 24 16:04:28 2013 -0400

    d2-common: remove unused init.qcom.coex.sh

    Change-Id: Ia4fe6b75725702582e1cd3f85cd0929b0dc387a4

commit 2bf4338ed16512c690859144c39a8fdb6bb79f8b
Author: Desterly <d3s7royer@gmail.com>
Date:   Sun Aug 18 21:37:37 2013 -0400

    d2-common : lower camcorder audio volume

    Lowering the setting to 87% puts the volume slightly louder then TW.
    83-85% is on par w/ TW but voices seem to come through better at 87%

    Change-Id: Ic2dfdd793616529f36f31e6a8b7e7ec2dc52cb1f

Change-Id: I5342dedd174caf040bb215689e9490ae38f3b3b3