Add signal in the kill CLI commando to send a specific signal to the service

Signed-off-by: Raúl Cumplido <raulcumplido@gmail.com>
Support multiple port mappings for same internal port

Signed-off-by: Andrew Burkett <burkett.andrew@gmail.com>
Move to build_port_bindings(). Added Tests

Signed-off-by: Andrew Burkett <burkett.andrew@gmail.com>
Merge pull request #624 from drewkett/multiple_port_mappings

Support multiple port bindings for same internal port
Merge pull request #611 from raulcd/604_support_reloading_containers

Add signal in the kill CLI commando to send a specific signal to the service
Merge remote-tracking branch 'upstream/master'