removing an extraneous space

Docker-DCO-1.1-Signed-off-by: Zac Dover <zdover@redhat.com> (github: zdover23)
Add --device flag to allow additional host devices in container

We add a --device flag which can be used like:

 docker run --device /dev/sda:/dev/xvda:rwm ubuntu /bin/bash

To allow the container to have read write permissions to access the host's /dev/sda via a node named /dev/xvda in the container.

Note: Much of this code was written by Dinesh Subhraveti dineshs@altiscale.com (github: dineshs-altiscale) and so he deserves a ton of credit.

Docker-DCO-1.1-Signed-off-by: Timothy <timothyhobbs@seznam.cz> (github: timthelion)
Merge pull request #6961 from crosbymichael/devices-flag

Add --device flag to allow additional host devices in container
Merge pull request #6209 from zdover23/03_Jun_2014

BZ#1104401 - correcting flags in docker-commit
Basic --cap-add and --cap-drop support for native

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Basic --cap-add and --cap-drop support for lxc

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
fix job and add tests

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
small refactoring

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
add basic support for 'all'

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
support add and drop in both order

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
add check for invalid caps

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
add doc

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)