Don't fallback to HTTP unless insecure_registry is specified when pushing/pulling
add support to add or drop capabilities
Merge pull request #314 from mantiz/add-support-to-add-or-drop-capabilities

add support to add or drop capabilities
Merge pull request #298 from docker/insecure_registry

Don't fallback to HTTP unless insecure_registry is specified when pushing/pulling
Fixed integration tests
Simplified init_poolmanager
Bumped version and updated Changelog
allow ports to be specified as port/proto

this patch modifies docker._container_config to accept ports specified
as 'port/proto' as well as simple 'port'.

Signed-off-by: Lars Kellogg-Stedman <lars@redhat.com>